Contrary to many folks opinion, there are some good Pinnacles out there. If you get hold of one, you will be quite pleased with the edge retention and the overall knife. It really isn't fair comparing it to the Sebenza as the 'benza has much more attention to detail which is reflected in the price and the consistently tight tolerances the Sebenza is famous for.
However, for the $100.00 your likely to pay for the Pinnacle, you'll get a very good work/SD folder that has a very tight lock-up and snaps open with ease and a good deal of authority. The thing is butt ugly of course, but it is possibly the strongest locking folder I own.
As many complaints as I've read about this folder in the past, I feel fortunate that my "First Production Run" model locks up tight, passes a spine whack test, has no blade play in any direction, holds an edge and hasn't chipped(a problem many seem to have had with Benchmade's ATS-34). My Pinnacle's edge flexes over a brass rod up and down the length of the blade and doesn't chip.
In fact, my only pet peeves about the Pinnacle are the re-curve blade(I wish it was a straight blade so it can be sharpened on a regular bench-stone) and the ease with which the Titanium shows scuffs and scratches.:grumpy:
So, if your in the market for a Pinnacle, it's best to try it before you buy it. Ordering it online may cost you some return postage if you get a bum sample. If possible, get several samples and look'em over good.
In closing, the Pinnacle is one of those folders where when it's a good one, it's very good, and when it's a bad one, it sucks like a Hoover. Good Luck!
Hope this helps.
All the best,
Mike U.