Ive been to Melbourne Indoor Paintball a couple of times now, both for bucks night fun. Its perfect for something a little different to do with you mates, especially if youve not been paintballing before.
Be warned, it can hurt at times, but nothing you cant handle. The staff there are friendly and operate professionally, which is important when you have a group of people firing guns at one another!
Personally I prefer outdoor paintball because it feels more authentic, but usually that comes at the cost of convenience. So overall Id recommend this place.