I’ve had one since they first came out. Before that I bought an HP .45 carbine several years earlier. Both are reliable.
The 10mm shoots cheap imported 10mm like Magtec and S&B fairly well. I’ve tried better grade ammo like Sig Elite and while my G40 groups it tighter, the HP doesn’t seem to care.
At 25 yards the .45 groups tighter, at 50 it’s a wash and IMHO is the max effective range for both based on accuracy.
I also have a TNW ASR 10mm carbine, takes my g40 mags but cost twice as much, so for under $300 the HP is a bargain.
The HP stock is flimsy and the rails are not picatinney but weaver, so some filing may be needed for some accessories. I run a Redball Sports 20 round mag in my .45 and a 10mm version is coming. It’s actually better than the factory mags.
Since it’s a simple blowback the spring is heavy so it does take a bit of muscle to charge. HP does rate it for +p use.