If it's this one/similar you're in for a treat! Bought it last summer and it was a welcome relief.
http://www.argos.co.uk/static/Product/partNumber/7623899.htm?cmpid=APP003
u/Zebra_Sewist is right about the window kit though, it's a bit naff/tricky to set up but if you can get it right, it's a dream.
Have a meacocool for a fair few years. Has lasted well through several heat waves. It is loud but that is more bearable than the heat. However my wife complains about being "too cold" with it on during heatwaves so I can't bloody win
You can usually hack a single hose into a dual hose: https://www.woolie.co.uk/article/convert-ac-from-single-hose-to-dual-hose/
I have done this with my Meaco Cool and a 3d printed adaptor.
Nabbed one from them on a Black Friday deal a couple of years ago and it's absolutely transformed my summer sleep quality.
Having solar panels on the house also minimises the energy costs beyond a quick burst in the evening to cool the room before going to bed.
WackSpack
