Hindsight is 20/20 and knowing what I've learned on here I can see that there were a lot of things they weren't doing that they should have been.
As for the feeding I was looking at him over a 3 week period between when I first looked at him and when I decided to get him and that entire time they kept telling me that he was "due" a feeding right up until I bought him. When I asked the last time he had eaten they wouldn't say, just that he was "due". And the size mouse they recommended was a small hopper.