Well, I wan't lying when I said that if I still used SLRs, I'd be VERY tempted to buy these lenses. As I did with the 75/2 Summicron for the Leicas.
Bear in mind also: someone has bought something is often impelled to justify his purchase to himself, never mind anyone else. An honest reviewer -- and I try to be honest -- doesn't have to do this.
My wife and I had the lenses, and used them, for two or three months. I doubt you will get a lot more information out of someone who has bought them. Of course you'll know more after two or three years but no-one has yet had them this long.
Finally, magazines have two policies on 'road tests'. Either they are always slavishly admiring, or they are honest. If I do not like a product, I do not praise it just to get published. In other words, if I say something is good, it's my honest opinion.
Cheers,
R.