I wanted no frills, and Guildford House Hotel didn’t promise frills! £50 for a double bed and en-suite from a static caravan next to Russell Square. I’d say the electrical fittings could have been fitted more securely, and the radiator could benefit from a valve you could adjust, but it was functional. The Wi-Fi was poor enough that I resorted to my phone's data in the end, and hot water needs to be run for a little while first, but at that price, the water isn’t staying in the pipes long enough to be a legionella risk.
It does the job, and the business is honest, but this isn't for you if you’re expecting a large, shiny chain hotel with a cooked breakfast in the morning.