Played for around two hours so far.
+ Am enjoying the game play. Everything goes very fast and I have found it extremely easy to get used to the control scheme.
+ No waggle!
+ Despite being mostly-linear, it does feel like a bit of Metroidvania is there when searching for items. It reminds of Metroid Fusion in its linearity. *
- Too much storyline. Some of the cut scenes just drag on too long and break up the flow of the action. It's not exactly a blast running down empty corridors then watching dialogue or a flashback for five minutes.
- You really can just furiously tap the d-pad during enemy encounters and dodge everything.
+ But some enemies cannot be killed by dodging and shooting!
In some ways, the game feels like "My first Ninja Gaiden." It plays like a simplified version of the Team Ninja-developed action series. Other M hasn't been difficult, but has been fun. If an action-oriented Metroid (and seriously, one that at times feels a little too much like Ninja Gaiden) sounds good to you, you'll probably like this. Just be prepared for an abundance of (stupid) cut scenes.
I'd say that this is a "B" game so far and to wait for a price drop, but it's a Nintendo game, so that probably isn't going to happen for a couple of years...if at all, LOL.
* Regarding the lack of an exploration element, it is still there...sort of. A lot of power-up items for Samus to find are hidden in spots that you'll either need to veer off the path to find or have certain abilities active to reach. A lot of people referred to Batman Arkham Asylum as being a Metroidvania style game, which I did not agree with-- that game held your hand the whole way through and the only "exploration" element was to find the optional audio tapes and the like. This game is the same way, yet people seem to be whining about it too much. This is not a traditional Metroid game...either accept it and enjoy it for what it is, or just pass on it and go replay Super Metroid instead.