What's not good: 1) I would rate the rings themselves as 7-8 at most. (real rings are solid wood - this is machined plywood). They are not well sanded, and as I seen in other reviews, need to be finished or lacquered. I expect that they will if they take any kind of damage they will splinter hard. Test - if you firmly grasp the ring, and rotate it inside your palm, you will feel roughness.
We hadn't gotten splinters, but we did get scratched by them.
2) The carabiners are solid. I don't know the load rating, but they are not the same garbage you get with most other gym equipment. However, they are not real climbing gear either. I suggest replacing them real stuff. #1 rule - All carabiners come with a kN, or kiloNewton rating engraved into the spine. If you have carabiners without a kN rating DO NOT use them for climbing.
3 & 4) Description says 4 carabiners. I got 2. But all you need is 2 anyway. "Anti-theft" carabiner is a ridiculous thing to put into description.
Good: Solid strap. Easy to adjust. Really like the numbers. Probably the best on amazon without going to real equipment.