I've been reading about this workout/gym for a few months but they were only located in the city at that time. I waited until they finally opened up in 89 mall in Egaila and checked it out. The 'theory' is that you do an hour class that keeps your body burning for up to 36 additional hours. I joined a gym last July for 3 months but got bored from the cardio. The classes hold up to 24 people only and your place must be reserved online so that will be interesting to see how it works out.
I joined for their special of 60 KD per month as a special offer before they open, it will then be 75 KD monthly and you have to buy a heart rate monitor as well.
It located in 89 mall in Egaila to the left on the 4th floor I think. You can find more information by visiting their IG @orangetheoryfitnesskw and their website as well.