"CELUS is fantastic, and I would not want to have to go back to doing my job without it again. It saves an unbelievable amount of time."

"The folks at CELUS are VERY accommodating, helpful and all around great to work with. They are always willing to troubleshoot with me when I have issues and also offer to do demos/introductions to their products for our subject librarians. I can't praise CELUS enough!"

"CELUS delivers on every promise. Our library began subscribing a little over a year ago and it has transformed our usage data processes -- it's now a joy to work with our usage data. I've worked with other SUSHI harvesting products, and none are as easy to set up and work with as CELUS. CELUS has many powerful tools built in that enable users to generate elegant, useful reports directly on the platform. It has helped me to identify multiple access problems, as well as opportunities to cancel overlapping subscriptions. The subscriptions we've cancelled just this year have more than paid for one year's access to CELUS. Finally, the customer service is amazing! When we are stuck, or encounter odd behavior, we email support and somebody always gets back to us right away with an answer. In conclusion, CELUS is a robust, intuitive product that has streamlined and elevated our usage data work."

"We've implemented CELUS several years ago, and we've been impressed with their support during and after implementation along with the product's evolution in performance and capability."

"I was delighted to discover CELUS soon after I accepted the position in electronic resources. I was overwhelmed by the many platforms and the need to gather usage statistics from them all. Having once worked in manufacturing and built a data warehouse solution for reporting and analysis, when I heard about CELUS for libraries via a Charleston Advisor article, I recognized right away the goldmine! This was the equivalent of at least 3 different software solutions required for the work I had done in manufacturing!! And behind it was a very helpful, bright, talented, and delightful team from the Czech Republic! So much information & so quickly to help our library team to make important decisions and so much help to decode the ever changing landscape of COUNTER!"

"CELUS does a great job of providing one service exceptionally well."

"CELUS is an incredible tool, and it has made my work and my team's work much more valuable. We are now able to put more time toward actual assessment of resource usage, now that we have this tool that manages the tedious aspect of statistics gathering for us. The folks behind CELUS are extremely responsive and very familiar with the product and its uses. Any suggestions for new or improved functionality are considered and often implemented by the competent and professional staff working for CELUS, who understand the product deeply, as well as the plight of e-resource librarians. The product is also relatively inexpensive, a rarity in the library technology landscape. CELUS has been absolutely critical in the success of my work and my team's work since we implemented it about a year and a half ago, and I recommend it to everyone."

Kansas State University loves CELUS! CELUS should be a requirement for any institutions who has a subject specialist who purchases content. In those cases, seldom are user statistics a norm. CELUS makes it VERY easy for those who do not typically use COUNTER. Its a one-stop for access to all assessment content. It also allows users to compare a single product in more than one package. This allows a library to easily tell which package is getting better use.

"We love how personable and responsive the CELUS team is. You guys have been an invaluable resource for our library; thank you!"

"CELUS has been consistently adding useful features, without the product becoming overly complex to use. Support has been outstanding. Thank you!"

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"We are pleased that we partnered with CELUS, and now we finally have a sustainable solution for harvesting, uploading, and reporting electronic resources usage data.

The training we received during the software's implementation was exceptional, and we continue to be impressed with their ongoing technical support."‍

"By choosing CELUS, libraries gain not only a robust reporting solution but also a dedicated and supportive partner in data-driven decision-making.

One of CELUS’ standout features is the autonomy it provides in setting up SUSHI harvesting, allowing institutions greater control over their data collection process. CELUS offers broader platform coverage compared to other usage statistics aggregators we have worked with, ensuring a more comprehensive analysis of resource usage.

A key advantage of CELUS is its ability to harvest both COUNTER-compliant and non-COUNTER usage data within the same platform. This approach unlocks significant potential for deeper and more holistic analysis, helping institutions make data-driven decisions with greater confidence."

"CELUS brought us permanently-accessible, extremely flexible tools in terms of granularity, deeper views, selections, and so on.

As CzechELib consortium leader, before CELUS, we had to rely on statistics supplied by e-resource providers, which were only raw data and which were often provided late.

Using the same tools, all individual consortium members can analyse their own statistical data and can compare  this with anonymized data from other consortium participants. The reaction to the introduction of CELUS was immediate, ranging from positive to enthusiastic."‍

"After two cycles of subscription renewals using CELUS to inform decision-making and report usage, we've really appreciated the easy set-up, the intuitive interface, the ease of use, and your responsiveness to questions and suggestions. The site looks good, which is helpful when reporting to management. Thanks, CELUS!"