I do not have a clue what the requirements are for FCC & TüV. What I do know it is quite strict and a lot of paperwork. I spoke to a couple of companies on an embedded exhibition last week (Netherlands) and the message was to expect throughput time could easily exceed 100%-150%. Not to speak of the cost increase. So every module that I use that has the requireded approvals up forehand save the customer money and time and me a couple of sore fingers for the paperwork and engineering time.
As for the rest... I like the module though