I bought a Detonics Pocket 9, lightly used, at a gun show sometime back in the late 80's. I had read a pretty positive review by Leroy Thompson in Combat Handguns and decided I *needed* one.
I really wanted to like the Pocket 9. It's a solid little chunk of stainless steel, and feels pretty business-like. Bought several brand new spare mags for it too. First time I shot it...I was fairly underwhelmed. I was still a relatively new shooter, and had plenty of "bad days" at the range...so I wrote off my performance with the Pocket 9 as just another bad day.
Shot it a few more times, but never warmed to it. So...it kinda worked its way to the back of the safe. After some years had gone by, and I was a little more consistent shooter...I revisited it. At that point I made definite note of its deficiencies.
For all its weight and mass...it kicks like a mule. It even twists in the hand under recoil. The grip is fat, for a single stack magazine, and short, so it never feels that comfortable in the hand. The double action trigger pull is horrid. Not that its so incredibly heavy, but, IIRC, it stacks rather badly, is not very smooth, and has severe over-travel. Follow-through feels impossible, as the trigger continues to pull another yard after it breaks. I tried dry-firing a lot, to master the DA trigger. Never, ever, not once...could I keep the sights aligned while dry-firing DA. Between the not-so-great trigger, and the *enormous* over-travel...the sight picture always jerked and weaved when the trigger broke.
The safety lever is pretty slim and a bit slick, very difficult to manipulate even under perfect conditions. Even with the safety engaged, depressing the trigger will drop the hammer...it just strikes a hammer block, and doesn't discharge...hopefully. The safety does not decock the pistol, so you could carry it cocked and...*sort-of* locked. I never knew if it was really safe to carry with safety off, so I couldn't see any realistic way to carry it. Perhaps it's safe to carry with safety off, hammer down...but you'll either have to thumb-cock it so as to fire your first round SA, or just squeeze off a "throw-away" in DA and then get serious. And thumb-cocking is not easily accomplished, because it has a very minimally-exposed, sort-of "melted" hammer.
Finally...the takedown is ridiculous. Without going into details...it basically takes three hands to take it down. Not friendly at all.
I don't believe mine ever malfunctioned in any way...but then I probably only ever put a couple hundred rounds through it, and all of them FMJ.
So...it's kinda cute, and feels solid in the hand. It weighs a ton for its size, kicks like a mule, only holds 6+1 rounds, is relatively inaccurate, mostly due to its DA trigger(I can't recall how it fired in SA, if it was accurate or not...but I don't think it impressed me), and is a pain to field-strip.
As a bonus...I keep seeing them for sale at the same price I paid some 30-odd years ago, and I've never seen one actually sell. So...a solid investment all the way around!
Tim
ETA: Forgot to mention price. All the ones I've seen have been around $325-$425 depending on condition and spare mags or other accessories. Most seem to hover around $400.