No spring chicken its true, but...
Tried one out a couple of weeks ago, and found that at 5'7" it was bloody uncomfortable to ride.
The front (sloping) bit of the seat was rock hard, so I had to slide back onto the (slightly) more comfortable middle bit, but that meant I wasn't sat upright (like on a Vespa) so my back ached, and because of how wide the body is, I felt like I was sat on one of the fairground bull rides and got off walking like John Wayne. Also, when sat further back, it was impossible (for me) to reach the floor with both feet so I had to slide forward again.
Now I'm not saying everyone is a short arsed f*cker with arthritis and a bad back like me, but I would seriously recommend anyone contemplating buying one, takes it for a reasonable ride first.
the lad who took one (2-up) to France and did a write up for SLUK had a blow-up saddle and gel saddle, maybe I should have tried it with one of them (but I've never had to use one on a Vespa..)
http://www.scooterlab.uk/scomadi-tl200-vs-vespa-gts-300-1000-miles-road-test-feature/