Well, I recently had a game of Rainmaker (A- to A+ range) where my team had three RGs and one MG, and the other team had two Dual Squelchers, a 52 Gal, and a Splattershot Jr. I thought we were finished when I saw my team with all aerosprays but we clearly had the advantage the entire game, finishing with a knockout. They had the rank advantage as well. Surprise!
I played most of the night with the MG in A- to S range games and had a lot of splats, besting even Luna Blasters and 92 Gals. Granted, I did switch to the Octoshot Replica and played better, but still. I really like the aerosprays. I usually use an Octoshot or the 52 Gal Deco but if I'm feeling like I'm not clicking with them, if I'm feeling slow, I'll often switch to the aerosprays and it just feels right.