I thought S2 was at least tolerable. The character of Christopher Pike seemed far more stable and realistic than the rest, and made it enjoyable. Somehow Mount appeared to have brought the crew to the same, more even, level.

Then (ughh) they brought the Enterprise back for a 2 episode Star Wars wannabe. That should have been my clue things were going back down hill.

Season three was just intolerable, IMHO.