Having built only the F89 so far I can say that these are old kits in a new box. Not that its a bad thing, but I was hoping for some updating in the Scorpion. Nothing earth shattering, standard Monogram/Revell kits. The Scorpion has raised panel lines, so be careful in sanding. There were a few issues with the seams around the engine intakes and exhaust area but nothing that can be overcome by someone with experience. Nose weight is a must! The decals were nice - went down no issues. It does make a great, bright addition due to the metal and red colors. I plan to do the other 2 kits with my nephew as his first models so I have not built them but they are easy enough that someone who has a kit or 2 under their belt cant do them.