Zefy

this is a way late reply so i apologize.

First off, i would like to point out that this is actually what i sell. I work for rack attack so i saved on the labor costs and got the parts at cost. This made it cheaper than the q-tower setup.

control towers are VERY easy to take on and off, looks better, holds more weight. The shortest track that thule or yakima sells is 42" making it to long for the car. If you are close to a rack attack store you can get a 36" as they are made in store. (not sure about state side)

The closest system that is readily available is the landing pad system (LP 7's) as they are direct mount and use the same tower. The thule system isn't as good as the yakima using this direct mount system as the pads are smaller so less weight capacity.

another good option is the p-bar from prorack. Very good direct mount and it looks good. Even better is the whispbar system. Looks fantastic, very quiet, uber functional.

hope that helps, and sorry for the slow reply.