I think it's only me, but I seem to always have great 3 coverage. I'm started to get a bit worried that the phone is lying to me.
Everywhere I go I have high signal.
I work for a security company and the office we are in as steel lined (and apparantly bomb proof), but I still get perfect signal, other people on normal networks seem to struggle (apart from t-mobile, orange and o2).
Also, I've had no real problems with the phone (other than lack of MMS messaging to none 3 phones).