High rise

Hi everyone,just wondering if anyone has done high rise work.I did a 7 story about 16 years ago and it was a pain.I cleaned an old folks home and didn’t think about all the heavy cigarette smoke in like almost 118 rooms I had to go into.It was the first one I did like that.I kinda lost my a** on that job due to the smoke on all the windows.Anyway I was just wondering how the high rise side of window cleaning is.That is if anyone has done it.Is it competitive?Is there a lot of lowballing.I assume the insurance isn’t cheap? Any info would be great!