So let me write about my experience...
Furstbof all an from Cyprus, so i put my home near Greece and a range of 1500km
So as now, what i noticed
When i am in a party, usually i get connected outside of my range and i have a lot of luck
When am playing alone, its seems that 50% of the games its blocking every one until i get the host, and after it's connecting other players on the party.. So when its like that i have good game
At the other half, at the other 50% i get connected outside of my range, and i have terrible luck..