They are cheap and that's what would make them appealing. But they have randomly taken payments out of my account "by mistake", admitted to it being an admin error, but haven't returned them.
They also say they have 4 working days to collect the van and this means that you're liable for any damages, even though you're not insured beyond your hire commitment.
Have a look through some other reviews as I'm sure others have had the same experience.
Don't get fooled by the cheap price, I would consider this company to be probably the most dishonest company around.