Scalability is not a issue for us. We have a single license and deploy it on various computers or multi-boot machines to test different operating systems and setups.

No issues.

We currently have groups with over 15 testers on the automation team that share a Zeenyx project. The product does have limitations on how certain project files are locked (checked-out). You may have to architect your project to allow for multiple files so that different users can checkout files. This is more of a limitation for version-control software.

We did execute a regression suite of 2300 test cases, with TestSet feature and Host Target model. We didn't notice any issues during our execution of the same. However, we did observe that aborting the test run of a test set in the middle of execution was taking a long time. This was reported and fixed immediately.

In terms of the scalability, there is a change in the requirements every three months, but the performance is still the same and it works absolutely fine.

We have not encountered any scalability issues.

No

It can be scaled 10 out of 10 for the application we have worked on as we all know Object identification is the heart of test automation and AT has identified each and every element on this application. Hence scalability is 10 from my end.

With respect to scalability also AT is a reliable option. We had generated a Regression Suite of more than 600 Test Cases and we didnt notice any issues during the execution of the same.