I'm one of the people who had the "dynamic disassembly" issue.
I bought my SR22P about 4 or 5 months ago. I read and heard that the sig mosquito and walther P22 were lesser guns so I went with the Ruger. I really like Rugers and have a couple MkIIs, a MkIII, and a couple 10/22s. A brother has a P89 (I think it is). All are great guns.
We were shooting from a table and a friend was shooting the SR22. I saw the slide fly forward, spring and rod going with it. So I inspected the parts and didn't notice anything broken - only that the takedown lever was depressed. He had his thumbs along that side and I asked him if maybe he had inadvertantly depressed (he has big hands) the takedown lever between shots - he said he didn't know/didn't think so. I reassembed it and fired it while holding it on the other side of a tree. Same thing.
Upon closer inspection the takedown lever (part no. 36 in the diagram - I think it is) was broken in half horizontally.
I called Ruger, they emailed me a shipping label, I sent it out on a Tuesday and had a repaired gun back in my hand by Friday of the same week. Note said they replaced the take-down lever, slide and test-fired it.
Unlike the few people who may be hyperventilating about the issue; I didn't really think it was any big deal. The slide only retracts to the takedown position and then, because the spring is pushing it forward, flies off the gun - to the front, away from the shooter, direction.
My experience would not in any way prevent me from purchasing another Ruger.
That's my 2 cents.
Edit: we actually found the broken off piece of the takedown lever on the table. I sent the broken-off piece back to Ruger too.