Thoughts after a week:
I've been using it for a short-ish commute (~5km) that is preceded by a long rail journey with two changes of train, lots of stairs and escalators.
The fold is a thing of beauty. I just love how it all scrunches up to nothing and can disappear under my desk.
The ride is a bit unfamiliar, but really nice. I can cruise comfortably along at quite a lick, not much different to my "proper" bike. It's really quite a different experience of riding. And a very nice one at that.
I have 3x2 gearing. I've tried it out on a steep hill near home and got up OK. The commute is flat so I can stay in the big ring (sprocket) and just flip up and down the hub gears.
It's not light. It is a bit of a heavy lump to lug up around stations. But then, I suppose it's a bike. A proper bike. How much did I expect it to weigh?
The four "easy wheels" don't steer very well, so I often carry it across concourses too.
I'm carrying my stuff in a rucksack. I will investigate mounted bags if my work placement lasts any significant period of time.
My wife can ride it quite comfortably. Given that there's a big height difference between us, that's quite something.
Why aren't all bikes like this?
Can't wait to give it a longer run out. Maybe a 30 miler just to see...