The good thing about aromasin is that is also boosts free test levels. So yes, it will give a boost in the gym too.
I'm currently taking 12.5mg aromasin eod, and it's working real well, but I'm also taking ~250mg test per week, and a lot of hcg (maybe 200+ iu eod). Getting new labs next week to see how it's working out. Haven't had labs while using aromasin yet.
Another thing to keep in mind, is that DHT has natural AI-like properties. I keep DHT high by using a lil bit of test cream on the nads 2-3 times per week. I haven't felt an itch in my nips in ages, and everything else seems pretty good for the most part. After my new labs, I'm likely tweaking things though since my current protocol isn't really sustainable (obviously). I'm really interested to see how my lipids are this time around on the new AI.