One of the peculiarities of light aeroplanes is that they do not publish a maximum seat weight.
If you look up the certification standards, they are usually designed to only 77kg per seat, a few to 86kg. A much lower value than any glider or most microlights. Yet microlights and gliders, with de-facto much higher seat limits, publish them as hard limits.
Makes no logical sense that it's this way around, but it is. Basically, so long as you're within MTOW and CG limits, then pretty much any fat sod can fly quite legally in any light aircraft.
If they crash, they may well not stay in the harness because the attachment points could well be designed to take half their weight. But, CAA don't seem to care, and the track record is that this is no real issue.
In reality, a typical Tommie has a payload good for two reasonable sized adults and a couple of hours fuel. Getting out of CG limits is very hard, but you should do W&CG anyhow and will occasionally find that you need to compromise on fuel.
I'm one of the half of the population that likes them, and I regard them as a well designed training aeroplane and enjoyable to fly. Payload should generally be a bit better than a C152.
They don't have a particular tendency to spin off the stall, but they do have a mildly exciting stall compared to most light aeroplanes. Frankly however, anybody with a bit of training (or some gliding or microlight experience) is not going to be scared by it - and the recovery is exactly the same as in anything else. Stick forward, full power, roll wings level, pitch up to a level or gentle climbing attitude.
G