nothing wrong with CC at all... everyone has their favourites...
question to askyourself on the ££ difference is are the switching abilities of REVO something which appeals, and factor in the Select+ switch cost on top to utilise these.
Custom Code you get what you get, its set, it works well but you dont get to fiddle with it.
REVO you have the select+ option if you want to fiddle with boost up/down, ignition up/down, or switch to stock etc.... but select+ is extra £ on top of map.
happy choosing