We have used house sitters through one of those websites.. Once...
We did because we have/ had dogs, cats, chooks, fish etc
When we got home...
Two sliding doors were broken. A couple of sauce pans had been burnt- read FUBAR.
Our old almost blind and half lame ridgeback that was suppose to be inside was left out in the cold... Because " the missus only likes females pets'.
Our cockatiel we had at the time was let out and landed in a pot of boiling water.... (Lived)
We had assumed we would have some recourse through the website. But it became their word against ours...
We wouldn't do that again...
Or if we did... We would want s bond..
2nd time we left the house with the parents of some friends of ours. - so a completely private arrangement. That had no real issues.
House was good, yard was good. Only thing that semi peeved me was they burnt my entire winter haul of wood in the fire place in only 4 weeks.
But as said. Minor.
Now we just put the dogs in kennels.
(We use to leave the dogs at home on smaller trips but a slight neighbour issue makes us feel better if the dogs are safe) Then either pay someone to come feed everything else or beg family and friends.
So it costs us more now... camping fees are cheaper than the kennels. Lol.
And the mutts aren't there to 'protect the house' ... But we have insurance.
But.. It's a big business, lots of people doing it... So it must work out ok for most..
That's been our experience anyway.