Hey there,
I took my CS exam in Atlanta this past week. I stayed with relatives, but regarding hotels, I saw a Day's Inn about a ten minute walk from the test center. It's right off Interstate I-285. I'm not sure how safe it is there though, but it's right in front of a major highway. I also heard that you should avoid the Ramanda Inn listed on the USMLE guide if you are a female because even though it's close and cheap, it's a little "sketchy."
Anyways, good luck with the exam! Once you get past the first encounter and get into a rhythm, the rest of the exam is pretty much smooth sailing.
pro