My Lezyne Alloy Floor Drive is always within 1-2 PSI of my SKS digital gauge, at both road and mountain bike pressures, and I've had it almost two years. Pretty darn accurate in my book.
I have just got the Lezyne alloy floor pump and I'm quite struggling with screwing the Presta head into the valve. I have a valve extender on my aero wheels and I find it difficult to screw in the Presta head, it basically turn the extender instead of just screw on top of it down. Also when I tried to screw it out, it turned the extender out of the tyre valve.
Any recommendation how you use it? I guess I'm doing something wrong..?
I don't know what people like about the Lenzyn, as there is nothing easy about using it. If you use a pump a lot like I do, then you'll likely want something quick, reliable and accurate. There are several good pumps on the market (SKS Airbase, Nashbar makes a good one, etc).
Having said that, I've heard remarks lately that Lenzyn is putting a quick release head on their pumps now and if you just purchased one, they will refit the head. You might want to contact them about this.