Talonius: I played it, and liked it. It felt MMish to me, but it has been a while since I played any of the original 9. If you get it on sale ($8.50 on Steam right now) I think it's worth it.
The best thing about it was it shows the studios' willingness to return to the original grid based movement and RPGs. While it may not be the best game ever, it's certainly a decent stand in until they commit again.
It definitely requires returning back to original MMs to reevaluate the magnificence of MM series.
Features of MM games, which basically define the whole series:
1. Big world, which can be traversed how you want (fly, climb mountains, etc.).
2. Paradise for powergamers with very high level caps and tons of loot.
MM10 doesn't fit this criteria, FAR from it. Game is small, overworld is tunnelish, there is no respawn, which heavily caps characters' level (AND you can break your characters because you don't know which skills you might need, you can't simply gain couple more levels to fix mistake). Its mechanics are extremely tedious in comparison to what real MMs have to offer.
They simply made some very generic and badly optimized dungeon crawler and labeled it "Might and Magic".