Here are 2 panos taken at different levels inside the church.
This worked surprisingly well. I obviously had permission (as a member) and turned on all the lights. GPS fix also worked, but took around 5 minutes to lock on and the mini3 would not take a panorama without GPS. This is reasonable. The stitching is not perfect, as quite close and hence parallax. It also helped that this is a big church.
The sound was not too much different, but is a very large space. I did get one person pop in from an adjacent room to fins out what was going on!
I would encourage people to try this is large indoor space, perhaps checking first how well GPS works. I tried GPSstatus app on my phone in the church and it picked up satellites surprsingly easily.