I have owned my Cycle On rack since September 2003 . I needed to get the bike off the roof and make things easier toload AND safer for my garage door. Putting a bike on the rack takes about 10 seconds. The rack is so easy to install in the 2" reciever, it takes one bolt and a 3/4" socket wrench and under 5 minutes. I usually leave it on the truck during the Spring,Summer, and Fall , but I only put it on in the Winter when I go riding.
The only issue I have ever had was leaving it on for a few Winters when I first got it. I never took it off. The road salt corroded the small torsion springs inside of the quick release buttons, and the arms wouldn't lock down any more. I had to buy the entire locking arm assemblies from the local bike shop (still, it was cheaper than a whole new rack.) I also have stripped and painted the wheel trays because my muddy MTB tires rubbed the coating off. I just primed and painted them black and good to go.
In all I would definitely buy this rack again if I had to. I would love to see a tempered aluminum version so it is lighter. The 2 bike carrier does have some weight to it. It's strong.