Pros: I can't complain... My Schwinn Aluminum Comp was *FREE* (my brother-in-law gave it to me). He had it upgraded with a new crank set, a better Shimano derailleur, and new brakes.
I like the lightweight feel of the Aluminum Comp. You can go anywhere on it with ease. It has smooth shifting, quick stopping, and a real nice balance.
Cons: Nothing that I know of. Um, maybe due to it being lightweight aluminum, where you can whip it all around in and out of the trees on a singletrack run, it might not be the best bike to do log jumps and/or insane rock hopping stuff with.
Recommendation: I really like this bike and love the upgrades my brother-in-law had done to it (before he bought his Trek Police Bike). I would buy this from Wally World, then do a few minor upgrades to it when you have the time and money. Long story short: It's a sweet bike for the price!