It's currently a very good multiplayer space combat game with questionable ground combat and mission design. The space combat helps set it apart from other MMORPGs though, and that gives it a unique niche that Cryptic can build upon if they're willing to focus on developing the player-versus-player content. For now though, the combat feels like the core of a promising but extremely unfinished MMORPG.
With the possible exception of the ground combat, none of the problems described above are beyond repair. Hopefully, Cryptic will eventually make good on that promise and create a game that most Star Trek fans -- if not Gene Roddenberry -- can appreciate.