Overall, this game seems to be a lot like F.E.A.R., just worse in almost all aspects, perhaps with the exception of texture resolution. You may like it, if you loved F.E.A.R.
User Woodentusk already has pretty much summed up Doom 3's major flaws a few comments down from mine, but I'd like to add a few points I have noticed. Doom 3 relies heavily on a shadowy atmosphere and cheap tricks, ticking all the boxes of bad map design classic Doom mappers have been rightly discouraged from applying. It also completely reverses some of the core points of classic FPS combat. Combat here is lame and unimaginative. It gets boring very quickly, and after three or four maps, you will already have developed a sense as to when to expect the next stupid horde of monsters coming out of the walls or getting teleported in right behind you. It is all highly repetitive and nowhere near the fun and variety of the old games. To make it worse, monsters in Doom 3 are seemingly unaffected by physics. Their attacks will stun you but your attacks barely, if ever, stun them... until they die, in which case their corpse either gets thrown through the room, or simply disappears right in front of your eyes. Another thing is the bad sound design. It is very difficult to locate sounds in this game. You could just as well set your sound card to mono, and it wouldn't make much difference. Even Wolfenstein 3D had better stereo. It is also difficult to tell monster sounds from other sounds apart, and the 'soundtrack' only adds to that. Actual music is only ever played in certain combat situations while the rest of the game carries an ambient soundtrack that is different from area to area and oftentimes will be decisively rhythmic, resembling music somewhat. That in itself is not an issue, but there is no way to turn it off, so you always have to listen to some sort of rhythmic sound which can be distracting considering the spooky overall theme of the game. Regarding the BFG Edition, it is technically the better game that fixes a lot of issues, but it also takes away the forced darkness and tension that Doom 3 relies upon so much, with BFG ending up as the worse game.
