This is not a complaint, just a warning...
When assembling the wave one fighter stands, I ran into a lot of problems with the base post peg, not fitting into the circular base. This resulted in several of the small pegs to the base post getting bent. I now have to request replacements for up to half of the base posts because once the peg is bent, you cannot use it, and I cannot see any other option other than gluing it tot he base. If you do this, you cannot flip over the fighter dial to swap from generic to unique pilot.
So when assembling the pieces, some of the posts may be too snug for the circular base. Again, it just may be me, and hopefully so, but be careful.
Otherwise, I was happy with the expansion set.