The game is pretty good, though as a metroid game, it needs some serious work. Though if you wanted to get into the franchise; like everyone her said try Super Metroid.Its the best 2D metroid game..........On a side note
My biggest pet peeve with people when it comes to them giving their own opinions about certain games (mainly Nintendo), is that they tend to ignore the positive aspects no matter bad or how good the game is (which is why I can never take Morgan Webb seriously as a reviewer anymore) and only (at least mainly) focus on the negative parts.
With that in mind, thats all I see (or hear I mean) when people talk about Metroid Other M. They bitch about how they made her into some kind of drama queen, or how they screwed up with her emotional side, story, linearity etc. If you enjoy the game overall, then good, But if you don't like the game because of all the little flaws it has, and don't bother with the positive aspects then you're just a whiny little kid who can't get his or her own way.
People can have their own opinions; thats their right, but that does not justify their selfishness. You don't see people bitching about games like Skyrim despite it's flaws (all the bugs it has).