JW3 was sweet as hell, and I loved it. Easily the best villains in the series. Lots of brutal surprises that I wouldn't have expected them to do.
My only real complaint, spoilered: Kind of disappointed that it's another cliffhanger ending. I know Keanu said he's willing to keep making this series as long as people want it, but I feel like it wouldn't hurt too bad to get a solid ending on one of these. Just leave some loose ends to lead into the next one, but don't make it a straight up cliffhanger again.