>>41552816GF tried with Gen 5 in general though. Don't know why people hate it so much, I liked using new Pokemon, and it's not like it locked you out of them old ones, the moment you beat Ghetsis you get the National Dex and can transfer everything, and catch old Pokemon in Unova as well.
As for general atmosphere and story, it was the best Pokemon ever had. And the game's main story isn't even that long, can't say it drags on.
And it was difficult, N into Ghetsis was something, that Hydreigon is a really hard-hitting cunt.