First, I really like DeMarchi clothing. They, like most (real) Italian, made in Italy, clothing companies, produce quality. I'll buy Italian/USA over the Chinese products, 98% of the time. Honestly, you should consider where your dollars are going.
Anyhow, I can see and feel the differences in the fabric, stitching, and such.
My complaint with this jersey was the sizing was way off - especially for an Italian product (they always run small). I like my kit snug and this one, despite falling actually below my measurements, has a handful of material on the sides flapping in the wind. Ironically, the arms fit pretty snug - and I don't exactly have guns at 149 lbs.
I should have sent it back, but I will just have to avoid anything heavy in the pockets for fear of it rolling from side to side.
Otherwise, it's well made, and simple enough to actually stand out in the graphics crazy pack.