I have the 887SBT Police Advocate, which uses 420HC. Yup, she's a big'un

I've had mine for a couple/three weeks now. I paid around $100 CDN for mine, so it was not too far out of whack for pricing. I have a medium small hand (cadet in golf terms

) and it fits my hand very well. The corners on the slabs were pretty sharp when I first got it, but now that it's worn a bit, it's fine. This is quite heavy for it's size, and I found that it best in my back pocket. Mine was OK sharp out of the box, not the "110 sharp" or "Spydie sharp", but a working sharp. Grinds were even - pivot on mine was really tight. Ended up loosening it and the lock tighting it when I it got looser. Mine is set tight enough that it can't be "flicked". I prefer them slightly tight. This is the first combo edge I've bought in a long time. I tried in on some cardboard and found that if I tilted at the point where the PE part started the cut and then combo took over, it cut like crazy!! If I started on the serrated edge, all it did was bind. Rope - different story. I didn't cut a lot of rope with it, but one serrated part, if I started there, it ripped thru very easily. I didn't try for an edge retention type test, just trying to figure out how to use it.
Because of the thickness of the blade itself and it's weight, for my EDC type things, it's too big and not "pointy" enough. BUT, it's one of those ones that begs for hard use. I've done a couple of things with it, that I probably wouldnt think of using any of my other folders for. I had to chisel out some wood in a door frame for a dead bolt I was installing. Usually, you should use a chisel (you are going to be chiselling and prying). I stuck in the tip, struck the pommel part with my hand to chisel out what I needed to do, and then pried out the pieces of excess wood. It didn't even blink at that. I also used it to dig out some weeds and dandelions out of my yard. I got that PE part pretty dull - but it came back very quickly on my DMT red hone. I've used it pry some staples out of some wood and it didn't blink at that. Trimmed some smaller dead branches from a tree in my back yard, using the serrations. That was OK as long as I didn't get past about 3/4 of an inch. Anything larger, and it started to bind a bit. I was on a ladder, so I was gripping the knife pretty hard, and torquing it a bit as a went. Liner stayed solid. Serrations stayed sharp.
I found a couple of annoying things about this knife. The detent was one of them. I found that it stuck a bit when you slipped the liner to close the blade and then just released the liner and continued to close the blade. If you held the liner over until past half way, fine. Now that it's worn in, it's better, just less annoying. The clip screws were the other thing. I wanted to move the clip to the other side, and couldn't get all the screws out. It was almost like the screws were halfway between T6 and T8. One of the nice things was, though, that there were two sets of screws - I guess to keep dirt and grit out. I could only get one of those out as well. For me, it's not enough to send this back to Buck or try to exchange it.
I've always wanted to monkey with one of these, and so when I actually found one, I bought it. For me, this is one knife that definitely is NOT for EDC type things. But then again, it's more of the combo edge - just doesn't do it for me, yet

But, it's one of those knives that would want as your backup knife. Mine resides in my daypack. Would I get another one? Maybe.......

I'm looking pretty hard at the new 889SBT which is a PE version of this one, sort of. Yes, I like the SBT a lot
Depending on what you do, though, in this price range, there are a lot of alternatives. For me, my two primary EDC's are a BM Mini-Grip (556/PE/thumbhole, drop point) and a Spydie FRN Delica/PE. I carry several on any one given day, but these two are currently the most used. Both are lightweight, easy to carry. My M16-03K/PE/spearpoint was also in there. My larger, most carried blades are either the BM 550 Griptillian/PE/Sheepsfoot, Spydie Paramilitary or Camillus Heat. Pick it up it up first.
Sorry to rant - hope this opion helps - gord