Honestly, I don't like the last two seasons of Lost. I do have a lot of complaints about, including the "answers" they gave, and the ending itself. But my main problem was the quality. For me, it started to drop in the fourth season, actually. But last two are not great. I find the last season to be really, really bad. And that's my main disappointment. I was actually excited about the idea of the flashsideways. For me, the drama and the character-driven part of Lost was by far the best and what kept me watching. I was super excited to see what would happen to them if the plane landed in LA. But the writing was soooo poor. It was so bad. I do think I could've enjoyed all this flashsideways idea if it was actually well written and well done. But it wasn't.