Enterprise showed alot of promise in it's 3rd and 4th seasons. Some of the fights against the Xindi, especially Azati Prime and the battle to save Earth were excellent.
I wish it had of lasted another 3 seasons but with B&B at the controls for most of it, Enterprise was doomed. The first two seasons were terrible at best, even worse than TNG's first season!
The whole "see what you can do about their engines" was just stupid. Even the Enterprise D couldn't easily take out a ships engines or weapons without doing damage to surrounding systems and just look at some of the TOS or Kirk era movie battles, no selective fire there!
