Working on my Starfighter. I'll spare you the open box treatment and just show you how I'm modifying the kit.
The R2 (R4?) unit was a bit of a mess. He came molded in two halves, and the seam was a bear to remove. The opening for his central "eye" was oval and crooked, so I filled it w/ Aves and sanded it smooth. I then drilled another hole, to accept either an MV lens or a homemade one. He also looks a bit static as molded, so I chopped off his head so I could rotate it some.
I furthermore thought that he sat too proud of the fighter's surface, so I shortened his torso a bit. Now he looks all hunkered down and worried. I think this will bring a little life to the model.
The engines as molded are supposed to be trapped between upper and lower hull parts early in construction. As I wanted to paint the engines w/ metallics, and the fighter proper w a Gull or Sea Grey, this would greatly complicate the painting process. Sooo, I modified the engine parts by cutting off their bases. The bases themselves were a little loose in their fittings, so I thickened them up a bit w/ sheet styrene. Now I can paint the pieces separately, and just slip the engines in during final construction.
That's all I got so far, but I'm having fun!