The very definition of middle-men. Yes, you might get a cheaper rate with these guys than by going direct. But if something goes wrong, forget about it. Their customer support team are utterly incompetent, and dealing with your issue basically means 'sending an email to the courier'. If that doesn't resolve your problem, then tough luck as they simply won't do any more than that. The claims process is unnecessarily complex and they will do everything in their power to avoid paying you anything, even when they lose your parcels and fail to deliver the service you paid for. Cut them out, go direct with the couriers, you'll be glad you did in the long run.