they were in Sheffield for a short while, lasted about 6 months before they pulled out last month due to the amount of vandalism and theft. mostly the scumbags broke the lock and smashed the electronics then used the bike as personal transport until they got bored and threw it in the river or smashed it up.
even when this wasnt the case on a couple of occations when i tried to find one i could see it on the app. but it wasnt there on the street and i would know that someone had taken it indoors so they would have one next time they needed it.
i used ofo bikes twice sucessfully and thought they were really good, but in reality Sheffield is just too hilly for these types of bikes and unfortunately like any big city there are just too many scumbags with no social conscience for it ever to work.