We have been using PractiTest for many years, so we can say this product always meets our needs taking into account the fact that our developers and testers are actively working on this tool together.
There are many useful features PractiTest offers, I will mention the best ones in my opinion.
At first we used folders in order to organize our data, but PractiTest's success manager suggested we use their Filters tree system. I can honestly say that, it was this transition that changed our work forever. Creating various filters and organizing the data in Filters trees suddenly just made sense. We were able to find tests and save time on "digging" for information.
Second, since we use Jira, it was great to find how smooth the integration works with PractiTest. We always have all data from PractiTest linked with Jira and vice versa.
Third, PractiTest gives us the licensing flexibility that allows us to adjust the number of users and license type on a daily basis, since this is every in flux, from project to project.
I recommend PractiTest to the companies that deal with manual testing. There are many features you can find in PractiTest whether you work with PractiTest only or you have integration with Jira, Redmine, Jenkins or other additional tools.