Yes i got the T1550 GEN 2 in chameleon white in size 520.
Let me share my first impressions: Straight out of the box, the quality seems very good. The paint job is great, and the visible parts of the frame make a good impression. The build went smoothly, without any problems. In the first few meters, the build gives a very solid impression: nothing rattles, no noises from the bottom bracket, even under heavy load. In the chosen size(56cm stack), I feel comfortable. It feels noticeably more compact and aerodynamic than my old 58cm frame. The bike rides very well. As mentioned by others, it is very stiff. When ordering, I was concerned that it might be too stiff, even uncomfortable. After three 100km rides, I cannot confirm this. I don't feel uncomfortable at all.
Overall i already love the bike. 

thanks for your response. This is not the seatpost wedge. Its another one, much smaller compared to the seatpost wedge,

Winspace has the size at 550 on their website, which roughly translates to a 58cm

How tall are you? I am 185cm, which is pretty mutch the upper limit of the 520 size. I am  currently considering whether i should go for the 520 with a longer stem, or play it safe and order the 550 with shorter stem. The smaller frame is lighter, has a more aggressive geometry and looks better to me.

Indeed it looks like a further development of the 168 frame. If so, it is not, as usual, a replica of western bicycle manufacturers. I wonder if it is really their own design?

Damn. This is a serious issue. I was seriously contemplating purchasing one of these framesets. Too many issues to be sorted yet. Any attempts to rectify the problems just seem to be mostly lip service from VB.

I think most problems are caused by unskilled assembly of the bike or can be solved with a clever work around. In my case the customer support of velobuild assured me to send a bigger compression ring, which should solve the problem.
In general I never heard of serious structural problems with these frames. Considering the low price of the frame set, you can get very good value for money. On the other hand, you have to be prepared to find your own solutions to solve problems. If you want a road bike, which works "perfect" in every aspect, you have to spent MUCH more money. So, If you don't have a problem finding solutions yourself, I can really recommend the frame to you.

Hi all,
I finished my build in june and have driven it 1300 km since then. I really like the bike in general  . Luckily I am one of the persons without one of the common quality problems, beside the following issue.
As some other guys i have to use micro spacers, to get get enough space between the top cover of the headset and the head tube. Otherwise the top cover would touch the head tube when compressing the headset.
Unfortunalely my microspacer arrangement slips out of place form time to time, which leads to a loose headset. I attached two photos, to illustrate the problem.
Maybe you can share picutes of your microspacer arrangement or any other advice on how I can address the problem would be very much appreciated. thanks in andvance