Here is my take on it.
I own an Ares G36K .
The Ares has maybe the best externals, very solid feeling, realistic take down. Best part? Quick-change spring system! the thing is a beaut!
But be prepared for some frustration when u want to mess around with it (modding, upgrades etc,). Ares has a lot of proprietary parts and not all things may fit
so sourcing parts might be difficult.
The g36 i got i have a strong feeling it was a lemon, wasnt working properly out of the box and had to go through a lot to get it shooting properly.
Would I recommend the Ares G36? Heck ya! given you dont get a lemon :P