I agree, I suppose if I had a deeper medicine cabinet or a larger sink counter I would enjoy the oversized DB but as I mentioned in my first post, the G5 is already bigger than expected. Again, as a new comer to SR shaving I have no other reference. As for heat retention, I fill the G5 with hot tap water once to warm it up and then drain and refill to start lathering...stays nice and hot for the duration of my shave.