I know, there are lots of topics with negative feedback and reviews on the internet. But some of they might be written by competitors.
I personally heard lots of negative about p2pb2b, but used latoken few time and didn't have any trouble with it.
I've been using Latoken for a long time and I have never had any issues that wouldn't be solved in the shortest time. I always could send a request to support and their team helped me out immediately. As for my experience, they are good guys who have improved their product significantly recently, btw. Another discussion goes about P2PB2B. Very slow and user-unfriendly place.