Vent is nice, sure, but we use TS. Why? Free for up to 100 users versus 8 for vent, lower bandwidth codecs (which is why the sound quality isn't AS good, it's still perfectly good enough for the human ear) and the ability to moderate channels and create registered-access chatrooms rather than having to put password protection on everything.
Vent has some nice bells and whistles too. Yes, it uses a 44k codec over the 24.6k that TS uses, but meh. Phantom mode (ghost-listening to multiple channels) would probably be interesting, but seldom used.
TS just works for us, YMMV. I REALLY don't like Vent's licensing, either. Too vague and snarky for me.