Enjoyed the A-Wing missions quite a lot. Good dogfights against mainly Z-95s and X-Wings and a few capital ships and corvettes to take out. My only complain is the Y-Wing mission, it's not too complicated but the Y-Wing is very hard to control, I'm not sure why. Other than that, it's a solid mission and it's nice to have some variety.
Edit: So, the problem with the Y-Wing actually comes from the Fly Rebels Fighters patch... Not sure what could have been done in this case, maybe we could fly a B-Wing instead?
Tried this custom battle to try out rebel ships on TIE Fighter, and it feels very wrong, but I loved it! Played on medium difficulty and was challenging enough for me to remain engaged and have fun. I'm not sure yet how it compares to other custom battles, but I had a lot of fun and I recommend it.
First custom mission I've ever played, so I can only compare it to the original missions. I had fun, it's a bit short, no waiting around for things to happen, but the dogfighting in it is very fun. The B1M1 audio works well with this mission, so I guess I could say it has good immersion. My only real complain is its length, but that is not necessarily bad. All in all, I recommend it.