The articulation scheme is not Marvel Legends, but it does work, especially for this character, there's very little you'd want her to do that she can't. The only problem with this figure is the quality control. I had to buy two because on one, a leg came off and couldn't be put back on while retaining functionality, while on both, rotating the left hand caused it to (very soon after coming out of packaging), break off.
It is so unfortunate because this is my favourite Ripley and the only one I wanted for my personal collection. Furthermore her accessories, while they may not be as cool as a smart-gun or a pulse rifle, are film accurate and fairly unique. Plus her jacket can be removed and her arms replaced for her tank-top look at the end of the film.
It's such a shame the quality control on this figure seems to be so low, even compared to other NECA releases, because otherwise, it's a fantastic figure.