Really great hopper. Almost never jams. Very low profile with good ball capacity. Very consistent feeding, streams just seem like they never hiccup/miss a beat compared to other hoppers - hard to describe. And the easiest tear down/cleaning/reassembly of any hopper imo.
Cons are it does popcorn the last 15-20 balls because the swoop stack spins too fast when there is no tension (this is oddly a signal to reload and can be countered by hitting the anti-jam button to slow down the swoop stack and allow those balls to drop in if you aren't going to immediately reload and need balls to fire). The speedfeed leaves something to be desired compared to the Virtue SF (doesn't feed as readily and can't see into hopper at all without trimming fins). And it isn't as gentle on paint as the Spire or Z2. It's not super rough just not as gentle as those two.
I have a TFX and a Spire and have used them both extensively. On balance I prefer the spire for its gentleness on paint, higher capacity of the 260, better speedfeed, window, and no popcorning. But the TFX isn't far behind for me, it's right there and advantage could go TFX based on personal preference.