how far away is your nearest work surface, and do you find this a problem when getting things out of the oven? I really like one of the kitchen designs I've been given, but have realised that having a bank of tall units means I would have to turn around and walk several steps to the island to put a hot dish down.
Loads of pictures seem to show these tower unit ovens with no work surface around them, but I'm not sure whether that would be very irritating after a while......