Very nice quality, the workmanship is pleasant and pleasant to the touch. The sticks in particular were very good and fitted the stem snugly so they didn't slide up and down at all, which I liked. The quadcopter fits well with small gaps making it feel a bit small, but I have no complaints so far. The buttons are a bit of a concern as they are very wobbly and wobble a lot in their holes resulting in a slight rattle when I run my finger over them. The buttons don't have the same pattern on the back as the standard buttons so they don't fit exactly like they should, but I'm sure I won't notice much of a difference after prolonged use. In addition, the shape of the sleeves on the buttons is interesting, to say the least. I wish whoever makes these replacement kits would offer the standard kits without the bullet pattern, which is pretty frustrating for someone who isn't a hardcore FPS player, but there's not much to do because the same style is in Revain is present in all, so there is no avoiding it. Overall it seems like a pretty good value for what it is.