Any positive experiences with large floor rising screens?

I have been trying to find a way to mount a large (110" diagonal) screen over a large window so need a retractable screen. Complication is that mounting it either to the window frame or ceiling are both problematic, see

https://www.avsforum.com/forum/23-screens/3092578-retractable-screen-mount-crazy-idea.html

I have scoured this forum and the internet for reviews of floor rising retractable screens and have found mostly complaints but that could be the "yelp" effect, ie unhappy customers more likely to post. Elite makes a few models but I couldn't find any tab-tensioned with ALR. XYSCREENS makes a ton of these but I have not been able to find anyone who has documented their experience one way or the other. Floor rising is a great idea but I'm not convinced of its maturity.

Anyone have experience? Thanks