I'm revising my review because the seller did (after a couple of emails) send me a replacement console FOC from Berlin.However, the original console's ON button did break after 3 uses...it's a red rubber push button, which looks solid but is held on at the back by just two very thin bits of plastic inside the consol SO...if you buy one don't press the ON button very hard because you can break it without much force like my wife did.Otherwise, the rest of the bike is VERY well made, the engineering is first class. The printed instructions are poor and a bit hard to follow. BUT...the YOUTUBE construction video is good, but I could only find it in German, but it is visually clear; so slow it down to half speed in the youtube settings and pause/rewind it while you build the bike, which takes about an hour. Verdict. A very good product, but let down a bit by the button and the build instructions.