I have never purchased from any of those places, yet. However, I have heard good about all of them on different things and the only one I heard anything bad about was Reptiles-N-Critters. Which, don't quote me on because it could be wrong and correct me if I am.
I was looking at purchasing from Reptiles-N-Critters but I came across a post in another forum where everyone was saying they don't actually have the pets on hand. From what everyone else was saying, I guess they are actually drop shippers and they got their pets from US Global Exotics which was shut down for horribly mistreating their animals.
Since reading that, I have decided to look elsewhere just to be safe. I don't have a problem at all with drop shippers, I just don't feel comfortable with someone who might be drop shipping live animals.