As the title says I have had an IPhone 4 with three since June and overall the reception is very good. I am on the One Plan. However I have had problems getting a signal in my office in London. I phoned three and they put me through to Network Options who have discounted my price plan to £29.50 per month from £35 per month. So I am now on the One Plan for £29.50 month including free spotify premium. So I get

2000 anytime minutes
5000 texts
Truly unlimited data including tethering
spotify premium

For £29.50 per month. Amazing really.

I even had the chance to downgrade to the £21.50 tariff If I chose. I thinks three customer service in India are very good.

Well done three where you signal maybe patchy in places you make up for it in price and data allowance

i have that tariff but i was told last december when i took it, it would cost £37, which i was fine with, but each month it got lower, and for the past 6 moths it has levelled out at £22 per month for exactly the same as you get, dont know why this has happened, am waiting for the day they realise though and hit me with a big bill, but i will fight that fight if and when it ever happens, certainly not gonna tell them