It can be extended upwards at which point, for me coz I'm a short arse, it blocks it but a slight lean forward and it's in view. As said access to the key can be a problem but two clips and it tilts sideways with easy access again. This is also useful for filling up you do not have to completely remove it and on our bikes it is a bonus.
Martin if you want to try before you buy then give me a shout and you can have a borrow of mine for a while.