Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
And yeah, the fairy weakness is rather gigantic. I think the solution with that maybe to replace M-Aero or even Conkeldurr with something that can handle the Fairies a little better. What I do vs fairies in general is rather dicey and I know Azumarill is kind of common.
One thing to note, though, is maybe replacing Conkeldurr with Scizor or Metagross. I would like Heatran but it's awkward as fuck to fit in and doesn't really handle Tyranitar.
meh definitely.
M-Aero is awesome v/s Bulky/Stall but being weak/neutral to all 4 common Ou priorities kind of sucks. Also Talonflame is doing too much. If it dies I basically lose the match 9/10 times. Another offense mon might be good. I was thinking of CB Azu. Knock off is absolutely massive for konk and blows a huge hole in celebi/aegislash who just walk over the entire team bar Talonflame.
And I can't get Aero to work Bullet punches and Aqua Jets everywhere. The fast taunt is awesome tho.