I stay in this type of hotel fairly often - it consists of small rooms in what used to be one of london's grand town houses. It provides the basics, clean building, TV, comfortable bed and a small bathroom. Location was good and the staff friendly. At this price range you can get some really bad hotels, but the UMI kind of stands out - you can tell they have a similar budget to many similar hotels but use it more wisely.
You can't expect the moon on a stick at these kind of prices, but what they do, they do it well. Check out some of my other reviews for similar hotels that don't get it right!