Workaway

[TamaraEnLaPlaya]

Found this site by chance this evening: http://www.workaway.info/hostlist-ES.html
Has anyone had first hand experience of 'workawaying' through here? I was surprised by the number of hosts in Fuerteventura - if it is kosher it looks like an ideal way for people to get to know an area, wish I'd known about it years ago (but then it probably didn't exist when I was young and commitment free!). There are a few 'hosts' who sound a little, how can I put it and be polite, 'strange', imo?