It was easy to build and finished (´・ω・)ノ
I have some complaints about the old kit's lack of fit and the parts not fitting together well, with the seams clearly visible, but I'm very satisfied with the color scheme and transformation mechanism.
It's well made, and feels like you're building the exact same mecha from the anime.
The only flaw is that the lid for the Gunbarrel missile pod snaps into place, but it's so loose it doesn't fit at all.
Other than that, it's a great kit considering its age.

HG Chaos Gundam Production Part 2 (Completed) | かりやめて's Gunpla works