every time i hear "fucking retarded gun" i know someone got double donked
in my experience it's really not fun to play against and leads to very random kills just for spamming chokes. at least with pipes you know their path and they only do 100 damage at a time.
edit also if you donk someone in choke, even if they aren't instakilled, they can get effectively stunlocked with 9/59/24 hp left and that's a free frag