This piece is just incredible. Easily the most articulated Sentinel piece I've gotten to mess with to-date, and everything from its paint to its build is outright perfection. Full details are in the review, but here are some pics from the gallery:
There's really not much to say on them because they're little Gashapon-type figures that don't do much. They are what they are, but they're definitely well-made.
The written review goes in depth, but overall, it's a solid piece that goes right along with the standards set by the line in general. The GN Sword Blaster is awesome but in general I wish that there were revisions on it and the Buster Sword to make the hands hold them more firmly.