Having the entire game take place on a spaceship was a convenient design choice, and still there could be a lot more variety in locales.
But like i said, i haven't really gotten very far into the game, those are just my first impressions, but i'm thinking this is one of those cases where good atmosphere can make a game with rather standard mechanics get so much praise (see Condemned, which was certainly a worse game though).
I did say 'better than re4' in regards to basic core mechanics -controlling your character and shooting, that's it- which certainly isn't the main reason RE4 was such a great game.
Capcom's masterpiece was just stuffed with awesome, the game was continuously throwing amazing moments at you, a 20 hours long journey into the awesome which basically never felt tired or stretched. So far DS hasn't come remotely close to it;
i'm not nitpicking, why would i be ? i bought the game, i have no interest in dissing it, it just hasn't given me any real holy shit moment so far.