We had Urban Cooling system installed a year ago, in an apartment with floor to ceiling windows and south-east exposure. Before the installation the reception room could heat up to 35-38 degrees during a sunny day! Urban Cooling AC saved us! It's super efficient and powerful, cools a big apartment very quickly and it's not very noisy, even on high settings. The system condenser is water-cooled so it can be installed 100% internally, which is the only option in many London houses. It is also energy efficient, I was surprised that our electricity bills were not much affected. Overall, a very good system that I would definitely recommend.