I just bought a Wilier Lavaredo, which is the same as the Triestina - the only difference is that the Triestina has carbon seatstays while the Lavaredo is all-aluminium.
I bought the frame and fork as a budget replacement for my CAAD 9 which was damaged in a wreck, as I couldn't afford another CAAD 9 here in Japan - they're quite a bit more than what they cost in the US.
Because of the price, I wasn't expecting the same ride as my CAAD 9. However, I was pleasantly surprised. Subjectively, it felt very much like a Cinelli Experience I had a few years ago....or it could just be my imagination, I don't really trust my own perceptions that much
It rides fine, maybe feels a little stiffer than the CAAD (again, my perception), and handles great, no problems so far. The finish was nice enough for the price - the welds look like they have been smoothed a bit, so they're not huge caterpillar-like blobs, which is nice. Of course, they aren't sanded down like on the CAAD, though. The decals under the clear coat are fine, although they might be off by a millimeter or so where they meet after wrapping around the tube, ie, not exactly perfect.
There were no other problems with for example, the bottom bracket threads, in fact it looks like the shell may have been faced as well (surprisingly!). However, as I use a square taper bb, I can't say for sure whether this is the case or not, seeing as how you would only notice if the shell faces are parallel when using an outboard bb.
The front fork is carbon with an alu steerer. Again, for the price I guess I can't complain.
Overall, I would say Wilier's lower-priced offerings are a good value. It reminds me that aluminium construction has come quite a ways from a decade or so ago, and also that because carbon is so popular nowadays, it's possible to get a quality alu bike that will probably suit your purposes just as well as carbon, while being cheaper.
As an aside, I also like that Wilier is a bit rarer than the Colnago....although I don't know if that's the case in the US.