Most textbooks I've seen so far are not concise enough for my taste and try to give way too much motivation. Or they're written with a too large focus on applications... Rudin wasn't bad contentwise, but the layout tells you it was 1991...
An example for a perfect textbook in my eyes would be the Analysis series of Amann/Escher (I have the German editions and assume the English ones aren't essentially different). They go into depth, don't babble around and are yet as general as possible in their definitions and proofs, without having one lose focus. The structure is very clear, too and beautifully built up.
Is there some textbook like this about functional analysis?