The toy does a pretty good job of being a toy-- the limited leg articulation is not a flaw as such, just something Hasbro elected to not do. You can still sit figures in the vehicle, move the legs at the "hips", and so on and so forth. My POTJ AT-ST has sagged to the point of falling over due to the extra leg articulation not being up to snuff, so I'd say there's a chance this toy might actually be slightly better off since it has sturdier legs with less articulation. (Granted, better articulation designs would be better still, but considering these things spend most of their lives on a shelf on one of two poses, I think Hasbro did a pretty good job. Better to make it stable, really, I hate to see toys sag or fade or otherwise start to fall apart a few months after I get it.)
I will say, though, that the big missile totally sucks. It barely clears the barrel. You push the button, and it just sort of sputters out in a pathetic whimper. If it worked, hey, great, but a lot of these larger rockets just don't function properly as a toy. Stomping legs or some sort of blast damage deco would've been nicer. Or some cheap-o electronic sounds or something, as long as it was functional.