Clever Cycles certainly knows their bikes. I think more than half their staff commute to work on Bromptons. Clever Cycles have lots of Bromptons and Terns to try out. Lots of Brooks saddles. Other bikes that I wasn't interested in. And the coolest "monster" bike I've ever seen. The tires were about 4-5 inches wide, knobby and I believe it was a Surly. If there is a monster truck equivalent for bikes, this bike was it. So cool.
Anyway, I'd believe them, although I'd personally want to see the Tern Airporter Mini in person.