Play the original PS1 version if you can, this remake is not worth it.
Doesn't live up to the quality put into the development of the original game. The original had high quality FMVs that made the world feel real, whereas this feels uneventful and doesn't feel like the world has any life to it. I don't think the devs of this version understood or appreciated certain details about the planet and the ecosystem from the original, it just doesn't capture the same feel or atmosphere that the original had. The 3D aspect feels like a gimmick, and actually makes the game more frustrating at times as it can be harder to see distances to things when the perspective is forced. I'd much prefer a HD remaster version of the original game. They replaced shadows that you hide in with a weird smoke, which makes it seem like they couldn't get shadows to work, lazy development maybe, not true to the original.
Controller support is poor, and for a few hours I could not get my controller to work. I had to manually remap each action and it's a PS3 controller. I had to unlearn my control knowledge from the original game because it's impossible to map it the same way as the PS1 game. The game forces you to use the analogue sticks instead of the d-pad as the d-pad is needed for speech and other things. I don't know why they had to change the controls. I also don't like using R3 (click analogue stick) for running, when it makes it less reliable than a separate button when you need to suddenly run from an enemy (PS1 version used R1 for run).
SPOILERS
Some of the obstacles have not been ported accurately, and there is one in particular that is game-breaking for many people near the end of the game (meat grinder). If your PC runs the game at 60fps, the obstacle runs faster than it did in the original, and requires perfect millisecond reflexes. This is a bug and should have been patched. I also had some weird glitches riding Elum where he would sometimes stop running or wouldn't have enough speed to jump the gaps. This may be because R3 is used for running and is less reliable.