Tricon, last week I also bought one of these - second-hand, and it had been dropped. No AF was the result. I was happy to use it as MF, but out of curiosity I did take it to a place for a quote on repair, and it turned out no new motor was required.
All my other lenses are screw-drive, so I do marvel now at how quiet the thing is. It does need to warm up momentarily when first used in the day.
No sign of the dreaded SDM fault yet, but the superb homework by posters on this forum means it can be converted if it does ever fail (I have a KX that can be used for its debug mode).
The optics are great. AFAIK, this and the 16-50 were meant to showcase all that was possible in APS-C: WR, light, quality analogues of the 28-70 and 70-200 f2.8 zooms on FF alternatives.
Shame, then, that the SDM screw is so weak, especially in the larger of the two lenses. The guy who did my repair said that he's worked on some Nikons with the same problem.
On Wednesday I tried it out at a bar gig by the sprightly Larry Graham, who's still having as much fun today with slap bass as he did with 500,000 cheering him at Woodstock.