Yea, I wouldn't personally either. I know somebody who got a snake from them and it died like 4 days later. If they're getting a lot of negative reviews then I personally stay away. It's not the fact that stuff goes wrong, but with most places it's the lack of how they handle it that gets them the negative review.
I had an issue with my first rack(shipping mixup) but the guy handled it flawlessly and even gave me a refund for my shipping which I did not even ask for. To me that's customer service because he fixed the problem and let me know immediately and refunded me shipping which was money out of his own pocket. It's just about how you handle a situation.
I used to deal with scorpions on a large scale and I've had one or twice a package get lost and then get there a week later with dead animals, then at the same time I've had it happen and everything get there fine. I took care of what went wrong without hesitation though and that's why I don't have any bad reviews.