An impressive technical achievement, but neither the low resolution nor the changes in control scheme really do it any favors.
What I'm getting at is that I find the original Doom is more pleasant to play than your port, both in terms of the controls and in terms of being able to actually see what's going on at a distance of more than a few meters. Using the mouse in a classic/retro shooter just feels unpleasantly "modern". And since I've already got the original Doom, I'd rather play that.