This just about sums up my take on how Lost ended – unanswered questions. The show turned into being all about character development and less about the logistics, mystery, sci-fi, time travel and physicality of everything about the island and its anomalies (the reasons I watched in the first place.)
Brilliant:
[...] Lost having shriveled up and died, maybe this could quench some of the thirst for a good, slow burning mystery. This first episode [...]