Absolute chaos! It's very fun to fly around in :) I didn't feel like the larger ship contributed a lot? Might be nice if it was more of a noticeable ally - I more or less ignored it through the run. Maybe it could shoot or drop bombs or something?
I'm not trying to justify myself, it is how it feels that is important, not how it is, but I'm just going to say that the game would be FAR harder without it. I probably should have made it more of an ally though.