First of all never trust reviews from websites doing reviews, most of them are paid so is irrelevant. It is simple, choose one that has refund policy on money back and test it. Test how fast they respond to a ticket and you'll realize if worth it. But like I said never trust paid reviews !!!
I think something people overlook is "time in business" how long have they been around?
I'm always a bit amused by this one. I just run through the little thing in my mind that if nobody should buy from a business that hasn't been around for at least a year (or other random amount of time) then how the hell is the business expected to last for that long in the first place.