Bag. MSRP is $4.99. Which gives us a $0.08 Price per Piece.
Instructions.
Parts. A fair amount of Plates, a decent selection of Ball Joints, new Headlight Bricks, and Slopes. There's also a Radar Dish, some Technic Bricks, and Bar and Clip Plates that are useful. The one weird inclusion is the 1x3x1 Door. Of course, I'm drooling over the Dark Bley Minifig Bananas.
Build. Frame and a Station.
The Questions:
Can you build something -- a frame, station, or starship -- right away? Yes. (+5)Is it below, at, or above the golden ratio? Below. (+5) (The Golden Ratio is $0.10 per part.)
If you can't build a frame right away, or choose not to, does it have parts you should be able to put into use right away? Yes. (+5)
Does it have more than a handful of immediately useful parts? Yes. (+5)
Score: +20 (A+). It's a Mixel set, should we be surprised at this point?