I've compared my new m22s to the new onwall 22's side by side, personally I like the regular m22's a lot better. The onwalls alone sound very good, but a sub is a must. To me they sound hollow or thin compared to a full bookshelf. Even with a sub, they don't have the same presence in the mid bass and lower mid frequencies that a full speaker enclosure can give you.

I'm not trying to say they sound bad, they don't, but physics can't be cheated.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB SonyUBPX800