So season 6 is a mixed bag so far. The first episode was ok for the initial point that we see there's a different timeline which looks like the crash didn't happen and we see stuff like the island is under water, but then it's kinda a waste of stuff happening in that timeline.
So we get about three episodes of meh stuff from that. But on the island we get some good stuff like the temple , sayid resurrected,, but then tortured. And some characters introduced that have been on the island but never mentioned but play a big part. A dude that can keep the monster out (but they start putting circles of ash or whatever...)
Then we get a string of really good episodes and it looks like things are happening with Des returning, some of the deaths and the planning / plotting of sawyer, flocke, and widmore... And people just seemingly changing sides then back
In the middle is a really good episode about Richard.
We then get what looks like is going to be an episode explaining a lot of things but ...
Across the Sea
This was a problematic episode. It made Jacob look like a real tool and Flocke/mib (who still remained nameless) sympathetic.
This was such a weird strange episode and I have a feeling the writers completely dropped the ball with this specific episode and caused themselves more issues rather than resolving a lot of stuff.
Three episodes left (and strangely I didn't remember anything of this specific season except knowing there were a few deaths and an episode for Richard and Jacob/mib)