Doom 64 kinda sucked... but i still played it alot because it was the only Doom on N64. Quake on N64 was pretty good though!
i found that the only thing that sucked about Doom 64 was the controls. if N64 had a better controller it would have been even better. damn stick in the middle. but other than that it was a great game. you should give it a try if you can play it with a different controller. thats one game i wish they would re release.
I only gave it that because of the multiplayer. Other than that game is awesome.