Yes, Derek & his crew do a great job with a design that works really well.
We had CCV install a pop-top on our Nissan NV200 back in 2016. That was when the campervan craze was just taking off, and they were having some growing pains trying to keep up. A two week job turned into 4 weeks, but the workmanship was great and the mechanicals were problem free. They seem to have fixed their internal issues and we wish them well.
BrianB