There not a bad mod though they aren't sealed so any juice ingress then your looking at a new board and there not cheap around 35 quid shipped and the only place you can buy one is from the squid site unless its a warranty issue then they send out a new board for you to fit
tbh it's probably going to be easier just to get a new mod if you're in the UK, once you factor in board cost and postage
there's a v4 of the mod as well now to