I am more disappointed wiht the gameplay and various balance issues - many of which should be resolved via patches anyway so i;'m not that fazed by it all.
The server settings need to actually be made available, at present it's too simplistic and doesn't really give you the ability to tweak a server how you like.
The interface is abominable needs to be fixed in the first patch, enough so that it is nice to look at (loose the wireframe and altered perspective rubbish) and make it more descriptive. Sure it doesn't have to be a masterpiece by any means but it is very, very simplistic when compared to most other MP game server options/menu choices etcetera.
The engine in this game is used to better effect in their other title Full Spectrum Warrior - where the diffusion of the bloom setting sets it better as does the action.