I'd like to know where the kegs are manufactured. I've heard bad things about Chinese kegs so I'd hate to buy one and have rust after one batch.
Jonathon is correct. I have read many great reviews for the kegs. I don't have personal experience with them, but wouldn't think twice about getting one. Jeff R (hopfenundmalz) has seen them as AiH is his LHBS. He has commented a few occasions that these are nice kegs.
Also, AiH has killer customer service. I'm sure if there was an issue, they would fix it straight away.