BHB has had it's reputation suffer in the last few years, due in part I think to Brian over extending his reach and catering more toward entertainment than the animals on his youtube channel, but Brian is still one of the big name breeders who know what he's doing and has a great deal of experience. Additionally, I've found animals of equal or better quality for cheaper. Not that Brian is over pricing his animals, but he runs a large facility with several employees, and has had a long time to build up a reputation. You're paying both for the guarantee of the name and the overhead if you buy from BHB. Not a bad thing, but up to you if you want to go that route or would rather hunt around for a smaller, more local business that might have a better deal.

As for rats, only place I've trusted ordering from quality wise that's also affordable is Big Cheese but as has been pointed out, they're often sold out of anything above a pup in size.