I've always had good experiences with HP
in general; last time I flew I upgraded to First at the last minute using my miles because that's the only way I could get a window seat (gotta have that window at any cost) and was pleasantly surprised. I had never flown First before, and never really seen the value; but the comfy leather seats, extra legroom, free unlimited drinks, and extra attentive service sure make a huge difference on a long flight. I think I'll probably start flying First more, being as inexpensive as it is on HP
Like I said, that was the first time I had flown in First Class on any airline, so I can't really compare it to others. I enjoyed the experience, though, and assuming you're not an ultra-picky connoisseur of First Class Cabins, you should too.