From: Dervish
In sweden at least, 3 is very very good in my opinion. I got this place in the middle of nowhere : full coverage !
And the samsung galaxy sII is just fantastic ;).
I've heard it's truly amazing for 3G signal, but that they use Orange for 2G, which I've no idea about.
Yeah, I'm completely obsessed with that phone, I think the people in the phone shop are getting a bit annoyed at me…
From: cycrosism
I have 3 as my network (Am from Aussie land) and I would have to say it is pretty good. The customer support is great (free to call them too, so if you are on hold for a while (you probably wont ever be) you wont need to pay). Only thing is sometimes I get bad internet speeds, but that's just my phone. I bought a Nokia (biggest mistake of my life). My brother got an andriod phone and he gets internet speeds so much faster then mine when he is just standing next to me. Happens on wifi too :(
tl;dr, 3 is good
So that's probably just the phone then? The S II seems to have a very good antenna, so shouldn't be a problem. Get an android ;)