The bicycles work, the stations are cute, if the machines are a bit fussy, but the biggest problem…read morewith this bike sharing program is that because of commuter patterns, most of the stations are either empty or full. So if you find a bike, there is no guarantee that there will be an open slot at your destination to put your bike in. Brussels is small, so most of the time, you'd be better off walking.
Also, it is very difficult to cancel your subscription - sending them an email won't suffice! Oh no, you must send them a letter, which is ridiculous, via post. Even if you've already emailed them! This is a pain and costs money if you live far away. I would say that Villo! sounds great, but in reality it is quite impractical, with lousy customer service. Avoid.