I like Jade Empire more than a lot of Bioware's more recent rpgs. It has an interesting (if repetitive) combat system, an interesting setting instead of the usual faux european medieval game with orcs and dragons etc, and some interesting characters and quests.
It's not perfect however, the second half of the game is increadibly rushed-feeling. As soon as you finish the city hub, the game seems to be in a rush to finish.
The inclusion of some features seems haphazardly implemented or just plain baffling in their inclusion at all. The Side scrolling shooter aspects with the airship seem especially strange. For another, you can break chairs and tables etc for pieces of furnature to beat your enemies (or hams), but this only appears in a handful of areas. (two, I think). The game has almost no customization (choose from a few premade characters, no hair/face options), no armor or weapon customization to speak of. party members (maximum of one at a time)can either enter combat mode or support mode, but are completely useless in combat mode. The closed fist/open palm mechanic at first seems like an interesting break from the usual good/evil scale, but in practice is almost completely a standard good/evil scale. (in one sidequest where you can get one item required for either the closed fist or open palm fighting style, choosing the most close-fist related dialogue options nets you the open palm fighting style component)
A great game, IMO, but it definatley has its fair share of problems, mostly mechanics-wise, but also suffring from poor-implementation of open-palm/closed-fist and a noticably rushed second half.