Do you have any advice for potential travellers?
You do not need to be an Olympian athlete but you will enjoy it more if you are mountain-fit which I would define as being confident in undertaking multi day walking of an equivalent standard of longish mountain walks in the Lake District or Snowdonia/Scotland. We were lucky with the weather, but as Exodus comments, it can and does rain. Your leader will make you walk if it does rain, so be prepared with good waterproofs!! Also, make sure you have good quality boots and socks which will not give you blisters - it is amazing how many people ignore this basic preparation (not in our group it has to be said, but we came across others, and they really, really suffer...)