What do you think of Desmond's time-travelling-conscience LOST episode?

I think I've seen it more than 5 times :D IMO it was the best episode of all 4 seasons. I was waiting for this time travel thing from a while and they found a really good way to show it like a subconcious-time travel. I also have seen the Desmond-centric episode of the 3rd season (the one in which he meets Charlie singing in the street) because knowing that he could do this kind of travels the episode was more clear. For example: when we see him lying in Penny's house floor it just seemed that he passed falling from the ladder but now we can say he came back from a travel when he was painting and that's the reason because he was on the ground without knowing what happened The episode was Flashes Before Your Eyes (3x08).

The last episodes of Lost this season have all been great. I did enjoy the Desmond time traveling episode and have watched it a couple of times now. We are getting answers and yes gaining some understanding about the characters.