The price is cheap (like the cheapest non-sharing hotel we can find), location is good, lots of food and store around the block.
We have ordered a double room with no window, but have given a single room with window. The room size is quite big, we still have plenty space after opening a large suitcase. The room is old but fairly clean. Given there is a portable fan provided, it is not too hot even there is no air-con. We can still sleep in a 25 degree night with the help of the fan.
I will pay some extra pound for the cleanness / newer hotel, but it is surely liveable and have its pros.