I've been with Three for a few years and am pleased with their mobile broadband offering. I've used Three both on a mobile phone (The One Plan) and via a portable MiFi unit.

Coverage 6/10

Good coverage in the cities, varies indoors in some places. Seems to be on par with other networks when it comes to commuting, 3G drifting in and out of coverage. Overall I've had more availability from Three than I had from Orange, O2 and Vodafone, all of whom I have also used previously.

Three were happy to offer me a guarantee when I joined them - test for a week, if there is no coverage where I need it then I can cancel the contract with no penalty. I had full coverage and didn't need to. If you're unsure check the coverage maps and make a deal with them in person at your local Three store.

Services 7/10

Based on experience of mobile 3G coverage and also The One Plan. Data, throughput, voicemail, roaming, all standard stuff well implemented. Could be a bit slicker. Reliability has been good over the years I've used them with only a couple of half-day UK-wide wobbles on 3G recently, reported in the news when they happened.

Support 5/10

I've not really needed to use support but the phone support goes through to a foreign call center which is not very good and works to a script. That said, once you get someone who can help they tend to stick with you and try to resolve the problem as best they can.

Speed 10/10

Full marks here, Three's standard 3G is rapid and their DC-HSDPA "Ultrafast" 3G is not far off 4G speeds. 4G is rolling out now, available free to all customers who have suitable hardware, which is a good move considering how much the 4G incumbents want to charge for the privilege. Latency is quite poor at times but I think this is an artifact of mobile broadband in general.

Value 10/10

Full marks again. Great Ultrafast 3G and 4G speed and connectivity and realistic data packages at sensible prices. Happy customer.