We made last minute reservations that they trusted us on (no prepayment) and everything went very well! Very well received, very well supervised during the activities we can only recommend :) (paragliding and horse)
We met a good attitude and received useful advice.
Booked us for the wrong day, didn't notify us in any way (not email, phone or even a written document with the date!).
And they refused to return us the money.