Cool transformation, I think it's similar to the G1 Optimus Prime (although I've never had him). Articulation is not bad, but the joints on mine were not as good as Vector Prime. The rachet joints were REALLY tight, but the swivel on the shoulder-to-arm part were very loose, easily pops off during transformation. Shoulder swivel was also quite loose on the arm with the gun. Cool transparent "water" projectile though. Very classic look. Love it!
Click the following picture!