I actually like this game very much. If you ignore the whole Adam Malkovich bullshit the story is decent, too. The game plays excellent but sometimes they kinda forget to tell you that some vital gadgets are usable....it's definitely worth it for 10 pounds but maybe not as an entry point into the metroid series? I would say get Super Metroid for an emulator and play this first.
Ongoing bet with think-man: He wins if MH4 releases in any shape or form on PSV in 2013, I win if it doesn't.