Kevin,
Quite a few cool things you can do with an S and the open API. The A-Frame work you mentioned has a ton of possibilities. What are you building?
In case you haven’t seen, here’s a couple of articles on the theta360.guide site:
Basics: Easily Create a 360 Gallery For RICOH THETA with A-Frame
Using with Oculus Go: HowTo: Viewing 360° Video in Real-Time from THETA V with Oculus Go Browser
Have you worked with Android at all? If you’re interested in trying out the V, I can arrange a loaner so you can get a real taste of it.
Jesse