I have this shaft for a few months now, I try to play with it here and there but I just can't get the hang of it.
I like the taper for a 12.5mm shaft, it doesn't feel like a noodle in my hand like other shafts with 12.5mm tip but with a longer taper.
I like how it looks, I don't like the tip I have on it but this I can fix... It's also a bit too heavy for my liking but I did find a couple butts in my collection that it balances nice and I can work with that.
I don't like its deflection characteristics and that's the BIG thing for me, every time I think I got it, I miss balls with English, switching shafts fix it on the spot.

I think that this is a big issue with "lower deflection" shafts, it's not just this one.
With standard shafts that deflect "normally" it's easier to compensate, and you do it the same for every shot, so once you learn the pivot point of the shaft, you're good to go.
With "real" low deflection shafts, they are also easy to tame, and you know that you only need to compensate for deflection on a hard shot which don't come up that often (at least on the tables that I play on) or when elevating the cue which in those cases it's better not to apply any English at all... so 99% of the shots, just stay parallel to the line of the shot and your OK. but those "lower deflection" shafts are not here or there...

For me, the reference point for low deflection shaft is the Predator 314 shaft (which I still like to pick up here and there). anything that deflects more, is just crap, a waste of money and the guessing game is endless, maybe not and issue with 5 inch pockets on a forgiving tables, but on a 9ft. with 4.5 inch pockets or under, with jumpy rails, just forget about it...
Most top brands CF shafts are as good as the 314 or better.
I think that the InFuze shaft is supposed to produce lower deflection than regular solid maple Kielwood shafts, maybe I'm wrong but I just do get how people like them... correct me if I'm wrong here. Or maybe regular Kielwood shafts just deflects as regular solid maple shafts.

Today I had a 3 hours session and used the Revo 12.9 shaft and it was just fine. after a break, I started a second session, this time with the InFuze shaft (on the same butt), I played with it for an hour and finally after missing to many shots I gave up and switched back to the Revo and my game got back on track.
I think that today was the last chance for this shaft. gonna pack it in one of my storage cases and let it join some of the other shafts I don't use... I feel that it's getting to be a waste of table time to try to get used to it. Too bad, it looks really nice on my Jacoby.