I have a contact there and apparently they are doing well though they don't bet on the sports i'm interested in so have had my account lying with a nominal deposit for a while.
The identification process for the initial first withdrawal is a bit of a pain but that seems to be the way all books are going nowadays.
A lot of people with vested interests seem intent on scare tactics but they seem a lot more secure than others. They have set up in Gibralter which has much higher standards than the costa rica, panama lot so I'd give them a try. As with all new books keep it small until you feel more secure. Time is always the best credential at the end of the day.