Whatever Wednesday: What is this resin stuff?

Just received my first resin model, a ProgettoK Alfa Romeo Guilia GTV in 1/43 scale. I love that Alfa red and and yellow color combination, and since my daughter’s name is Julia I had to have this!

But, honestly, I’m not impressed with the actual model. The wheels look cheap, with no definition to the wire spokes, and the rear ones won’t spin. The windshield glass is about as thick as two layers of Saran Wrap, and has a significant warp inward on the driver’s side. The decals are sloppily applied, too, so overall it looks good from three feet away but it doesn't stand up to close inspection. Anyone else have ProgettoK models? Thoughts on their quality?