I have a Foxwing awning.
I really like it. It unfurls to provide coverage for the entire passenger side and rear of the vehicle. I do a lot of desert camping, so having a big patch of shade is a good thing. Takes about 5 minutes to deploy, and a little longer than that to put it away. It has protected me from sun, rain, hail and snow. It's attached to two Thule roof bars, and I leave it attached pretty much all the time. My only complaint is that the zippered cover that covers it could be just a tad larger. Folding it up and stowing it away takes longer than it should because the fit is just a little bit tight.
video here: http://www.youtube.com/watch?v=_HCggh7f8kI
Picture on my rig:
Like I reviewed earlier, The ARB is a great awning for the price. It provides ample shade and does that job well and like I said, its great for the price. That said, With small kids and when its dark and you've had a couple of beers the guy lines will get you or you kids. I've been finding that staking in the desert is proving to be ridiculous and if wind is in the forecast this awning will launch if not staked. Setting up by yourself can be a pain as well. Otherwise we are making do with what we have and will upgrade to the Hannibal once funds allow. If you have the money go for the Hannibal.