For Bonesie, at 1.95m (6' 5" in old money) I am comfortable in our M3W mainly because we have a 50mm spacer behind the wheel...and we have met other tall people who seem successful by this means. This successful group does not include our 2.1m son who has no chance! …. in contemplating his eventual inheritance, he has thoughts on re-engineering the steering column location.....). Do recognise though that the floor mounted pedals do create some extra awkwardness and the driving position is certainly narrow.
Although not in Peter's target response group - we have had ours since early 2012 and having nursed it and ourselves through all the various trials and tribulations (n.b. we have always got home) we have no intention of parting company … however, not sure if I would buy new today - the EU4-led changes are not attractive and regulations to come may make matters worse - if you want one, I'd suggest you buy a well-sorted, well cared one from 2014-2016.
Some people have come to these from bikes and thus are used to the limitations in comfort and weather exposure in exchange for the raw motoring experience - we liken it to a rearranged bike and sidecar. We were not bikers but saw ours as a fun replacement for cat sailing which became too risky for worn knees.