Loved it! Even better than Buffy's finale where Xander's ex-fiance's death ruined it for me. For such a downbeat ending, the "we're going to fight on" added the right amount of optimism for me. I figure they win, Wesley is indeed reunited with Fred in the after life. Heck, Faith even goes & gets a sole.
I hear that there might be a movie down the road but if not I thought this was an OK place to end.