Thanks for doing this Ron. It is much appreciated as I didn't find time to get out of my room at all.
One thing I've learned over the years is that the phone processes the sound during recording AND during playback, and you actually get great fidelity if the recording and playback are on cellphones. Samsung, Apple, etc. all have large teams of engineers (smarter than I am) to deliver this sound quality - and listening to the videos on a phone rather than on a PC gives me much better an idea of what each room sounded like.
The fidelity is good enough for me to use in loudspeaker design as I will record different iterations of crossover changes, and this helps me tremendously in design and development. Not as good as a proper recording set-up, but far better than you would think just using a cellphone.
I agree here completely, and I have done the same. When all things are equal, there are elements of how the phone records and plays back that really illustrate design changes and their effect. Critical aural memory is actually quite short, so often by the time you have changed a piece of equipment its already been too long. The phone allows for very fast A/B. It doesnt sound enjoyable, and Id never use to to judge different systems in different locations, but as a tweaking tool, it can be highly effective.