Here's some pics of these gloves that hopefully will give you a better idea of what to expect than a lot of reviews. I've used them for somewhere around 250 miles but only in colder weather (mid 40s - low 50s). So far I like them very much.
Sizing
My palm measurement is just shy of 9", and I consider myself to have average size fingers. For comparison, the Castle (HJC) Mesh gloves ($40, pictured black) are XL, and the SGS are LG. In the palm area both gloves fit about the same. The Castle gloves fit palm and fingers great. The SGS are a little longer in the finger and there's a little extra space at the ends.
Comfort
The Scorpions are very comfortable, no noticeable difference in comfort from the mesh gloves. They are fully lined as pictured. They definitely don't flow as much air as the mesh, but I don't think this will be an issue even on hot days but that remains to be seen. So far I've had no issues operating the motorcycle, and don't expect any.
Quality
Build quality seems average. The stampings are clean but some air holes aren't cleanly punched. There's also visible glue on some of the seams. They feature kangaroo palms with cowhide leather on the back and reinforcement. Includes Knox SPS system. No noticeable stitching issues at this point.
Protection
These are a notable upgrade above the mesh gloves. The velcro fastener seems like it could be beefier, but is probably adequate for a street oriented glove.
Overall
These are nice gloves, especially for $80. Considering I paid close to $40 for the Castles, I now have to wonder what I was thinking? They're nice looking, and kangaroo is rarely found in gloves at this price point. Knox SPS is proven to work well, again rare at this price point. SG3 is the same glove but adds a gauntlet. Might be worth the extra $55 ($135). Hehe the spring clip used in the packaging is even reusable as a chip clip or something along those lines.
Gloves
Lining
Side of the hand protection is vastly superior to the Castle Mesh gloves which are only mesh material
Castle (HJC) Mesh Gloves ($40). IMO these are only capable of providing minimal protection. I can't see them providing adequate protection in anything but parking lot speed crash. Probably not significantly better than leather driving gloves.