Yeah its gonna be really different for sure, I'm not sure how it will come through on the TV and how it will look, but seeing youtube videos of events in sphere looks totally different and a bit too much going on, so not sure how it will work with the fights, interested to find out.
I'm not sure if it will be too distracting for the fighters because the way its designed you're supposed to be looking up, and with all the screens and lights it will be strange if you're not used to it I think. I guess will find out in the first prelim if the fighters are aiming their punches up towards the sky haha