Well, I have respect for the focusing silence of the DA*16-50 now, having had a play with a very nice copy today. One thing that creeped me out totally though, the CA. Dang! It was pretty fierce.
For comparison, I swapped it out for my Tamron 28-75 2.8, and you'd need a microscope to find any CA. (both sets of shots seen later in Lightroom at 100%, but the CA from the DA* was visible at zero magnification).
The DA*16-50 is a very nicely built item. And at first I thought, oooooh!
But at twice the price of the Tamron, I was hoping to see something better in the results. Rendering wise, it's great, but then so is the Tamron. Wide open, it was great... yep, so is my Tamron. Gets very sharp when stopped down, which everyone knows I guess, but I reckon the Tamron had the edge wide open, and matched it all the way down to f11.
These were all real world outdoors stuff, with the odd quick portrait. No, I don't keep copies of test shots, but if you pop over to photozone.de, you'll see they're results mirror what I saw today. Tell you though, if they could get rid of the CA, I don't think you could want for more in a zoom than the DA* - really like the 16mm wide end - but find I'm using the 50-70mm range mostly these days (from the profiling done on the exifs from last year).
The lady whose DA* tried, got a good one first time. She said two friends also got great copies on the first go, as well - which is encouraging (these were all bought in 2008 though).