DO NOT USE AFFORD!
They left me and my dad stood on the hard shoulder of the M1 in the freezing cold for 3 and a half hours when one of their vans broke down when I moved back from London. I'd used them 3 or 4 times before and they were fine, but the first time something went wrong their ability to handle any kind of problem disintegrated.
This happened on a Saturday, and they would have just left the van on our drive (it was towed there) all day on Sunday, as the Stafford branch was closed, had I not called somebody in the Stoke office and insisted they remove it so we could get our car on to take Anders Panders' stuff round to her folks' house.
Then I heard nothing from them before Monday lunch time so called them. I didn't even receive an apology from the gormless woman on the phone. All she kept saying was "It's not my fault you broke down!" Anyway, I made it clear I wasn't happy and said I wanted compensation - she said the branch manager was looking into it and would call me back in an hour. At 6pm I got a call from the branch manager who offered me a free rental (not likely, matey) or a 50% refund. I managed to talk him up to £60, as a 50% refund didn't really cover the £25 worth of diesel I'd just put in or all the extra expense and inconvenience caused. Neither did £60 really, but I could see it was the best I was going to get.
Anyway, use them if you want - just pray you don't break down