I didn't like 3s customer service (off-shore call centre), but then again isn't most telcos off-shore now.

I had issues with 3 with coverage, but that now will depend on who 3 is in bed with, with regards to coverage outside of the 3 area.

I went to the ombudsman to get out of my 3 contract, even though 3 should have let me out because of things they'd listed in their contract with me and they never came through with, they refused so I had to take it further.