I'm also using a Fellow Stagg XF! It's super quick and convenient. It replaced an aeropress for me.
Wife gave me a Hario Siphon but it was too much effort to clean. I whip it out for guests, still though.
I'm personally less of a fan of espresso, so saving some money by not having a fancy machine
They just funded the study, which is supposed to take half a year.
I'm excited if and when they actually are able to do this though! The renders look really nice, and I'd definitely use this path. I also wonder what they can do to combat the encampments along the path.