Many trailers ago when we had an old Jayco pup I would not have wanted it. However, as we've grown accustomed to more automatic systems, I'd consider the electric roof if we were to do it again.
The one thing I would have to understand is the failure rate. I can't speak to that but hopefully others can.
Also, good point from Kim about the battery power. How much power does it use, do you need bigger batteries, etc?
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD