The only thing I'd be able to compare them to would be LEGO, and even then, I'm not the best person, as I'm not big in the block scene (if it's even called that).

I think the plastic quality is pretty good. It's not as precise as LEGO, but that's kinda like complaining that every Transformer isn't an MP.

I haven't had anything break, and I'm not really worried about anything, other than my usual concerns about the possibilities of C-clips snapping. Hasn't happened so far, and doubt it will.

I know some people have mentioned how much they dislike the rubber-coated balljoints used (same as they used for the Kre-O builds). I don't mind it. Weight isn't an issue on these guys, but you start to get a bit iffy on the triplechangers (but again, you're better off skipping them anyway). So if you didn't like them on the Kre-Os, you probably won't like them here. For me, not something I'd have thought about, but may be an issue for some apparently.

For the price, I was honestly very happy at the value of them, especially, as I mentioned, Ironhide and Wheeljack.

Big figures, accessories (obviously WJ wins that one, but Ironhide has a gun), and what to me seems like good quality plastic. Ironhide is amazing at $15, I don't know how anyone could pass him up (I've customised my two slightly, and I think it looks even better than the default builds, and it was just a few extremely minor changes. I'm sure people with skill can do much better). Wheeljack comes with a lot more, and looks totally badass, but you may not be completely convinced it's worth double the price. Depends on what you think of the extra storage case too, I guess. But when you really look at it, for what WJ is, and for the price, I think it's perfectly reasonable, and I'm happy.