I purchased out Chi-Fox from Puppy Patch August 2009 and couldn't be happier. She's a wonderful dog and my experience was a plus. I took her to the vet ASAP for a checkup. She did have an intestinal virus (not uncommon of pet stores) and after a round of medicine she was 100%. I took in my receipts for the medicine and they reimbursed me for that expense.
There is never a sure thing no matter where you buy. But my experience was so positive that I am in the process of buying our 2nd puppy from them. If this one has issues, I know that Puppy Patch will stand behind their word.
The person who complained that the owner was rude...well welcome to Connecticut!