I just got the sunex crowfoot flare nuts. Not sure what I can really tell you about then since I haven't put them to use yet ...
The metric set is 10 piece, goes from 10-19. The SAE is 8 piece, going from 3/8-7/8, by 1/16 intervals, skipping 13/16.
The exterior chrome is very nice, there are certainly imperfections on the inside of the wrench, the bolt contact surfaces. The sizes are stamped on. While the sunex logo is laser etched. The square drive ends ... It's weird. About 1/3 have detents, 1/3 have half assed attempts at detents, and a1/3 have no detents. Wtf. Whatever... Nevertheless, if you have a spring loaded detent ball, it holds the wrench onto the breaker bar/ratchet just fine detent or not. However, ratchets that are quick release type don't hold these wrenches on at all. They seem to have plenty or metal meat on them.
Made in Taiwan.
The rail that they come on isn't bad. Certainly stronger than my HF rails. Certainly weaker than my SO rails. Closer to the SO than the HF when it comes to stiffness/strength.
Price was about $22 for each set.
I'll report back later when I round off my first nut with them.
