I despise insides, they are horrible.
I sweat like a pig, partly because it's usually hot but also because im a nervous wreck dripping water everywhere, trying not to break stuff etc. Not to mention customers eyes burning into to the back of your head. It's horrible, I can't wait to get out, it's claustrophobic and feel like I'm going to have a panic attack lol.
I did one last year begrudgingly and I soon wished I hadn't.
I only once did insides in a commercial job and that was horrible too. Had to sign in and do all health and safety stuff. Then clean windows in offices full of people working dripping water all over there paper work etc. I had to wait till meeting had finished etc in various rooms. I did it once and never went back.
Residential outside only is all I'm interested in. I wouldn't say never but it would have to be an extremely good rate to get me to do insides again.