
Test collab promises a lot, especially when dealing with test cases that can be used across multiple projects (when for instance you're declining the same product to different clients with some specificities). Review collected by and hosted on G2.com.
Performances drop significantly as you add more test cases and users to your project.
Many features are half-finished (linking test cases, could be improved and be less rigid), there are still bugs (we have had "ghost" test cases showing up in our database).
The UI is quite stark and you cannot fully preview a test case when in a test plan page, requiring to enter the test case page (which means loading a page, which takes a long time when your project starts to grow).
It is not possible to create your own reporting template, you have to use those included with Test Collab, and in our case none of them are suitable for our needs.
Overall the Test Collab still feels like a beta. Review collected by and hosted on G2.com.