immersion?If you can withstand the 1996-ish immersion, sluggish animations/shooting, L4D sound recycling, then yes, I suppose.
it's a zombie killing game that you play with friends who are most likely yelling profanity the whole time. it's not supposed to be immersive. it's supposed to be fun
sluggish animations will depend on your computer power and connection speed.
L4D sound effects? who cares? it's just a mod.