You didn't find it repetitive at all?
Strangely i thought about this at the beginning of the first play, but no more in the 3 times i played the demo.
Remember that in silent hill bom everything(puzzles, map, enemies, bonus, weapons etc), except special rooms and missions, is randomly generated.
Puzzles and blue orbs missions should have been better and more various, but they are random, so you can't expect something too deep, but at the same time every play is different.
In 2 dungeons there are very different enemies, so i'm positive about enemies.
Maps are small, so you can make a relatively short play when you want.
The game has its faults, but the story(a boy/girl that egoistically use a book tied with silent hill to gain a better life, it's not difficult to imagine that nothing good will come from it...), the karma mechanics(enemies with the same karma won't attack you or they could even protect you from opposite karma enemies), karma special moves, very limited number of object you can carry(i really hate unlimited inventories i survival horrors), special event rooms with 3 different results, everything randomly generated etc intrigue me, i really want to see where the game goes.