I purchased the Flandrien after much research and feel like it was a solid choice. It is my first road bike, so I do not have too much to compare to other than the rental bikes I used in Europe (Specialized and Cannondale). I will tell you that I was happy to be back on the Flandrien after riding something different. The frame is solid and is very compliant. The product description provided is true to form, this bike is great on every type of road. The Ultegra gruppo is super reliable.
I'm 6'0" and purchased the large frame. I was a little stretched out with the longer stem that came stock on the bike so I ended up replacing the 120mm with a 100mm which made it perfect. I will plan on upgrading the wheel set next year but the stock 4ZA wheels get the job done. The stock cassette is a 12x25 which is a bit much if you plan on doing a bunch of climbing. I plan on changing out the cassette for better gearing for climbing or getting a compact double. Overall, the bike has been very solid and the aesthetics are tough to beat. Great value.