Is there any way you can test ride a Brommie first? Folding bike fit is such an individual thing, you may like or hate the riding position.

I have a Brompton M3L and a boatload of other folders. The Brommie would be first choice only if I wanted to travel with the smallest footprint. Riding position is not ideal for me - I'm 5'4 and the bars are too far away and too high.

I would reach for my Bike Friday Air Glide w/suspension beam for all-day comfort. I don't mind the time spent packing and unpacking because the ride more than makes up for it.