I have had my flight for a little over a year and it's done around 45 dives on 3 dive trips. I went to get it serviced before my next trip, and the technician didn't have the right unique tools for the flight and needs to order them specifically from apeks, which will take extra time. It has made me think that maybe in retrospect all things being equal I may have picked the mikron (which was out of stock last year when I was buying a reg), although having said that I absolutely love my flight, so comfy to dive with, never had a problem during a dive with it (apart from chewing through a mouthpiece, which is hardly the regs fault!) and it's so light for travel.
I'm going to be talking to my technician about what the special servicing requirements are as am planning on spending a lot of time in Thailand next year and would be concerned that they might not have the right tools either.