I had a rubbish experience of loaning when I was a teenager. Had a 4 year old anglo arab mare. Very thin and nervous when we collected her, had awful feet, had only just been backed, she had no ridden experience. We had to do a 60 mile round trip to pick the owner up every week for 3 months, then every 2 weeks for a couple of months, then once a month, so she could check on her.
After 18 months, Shebi was a stunning, well schooled, well behaved little horse, who could turn her hoof to anything. When she saw how lovely Shebi was, she decided to have her back. Nothing we could do and I was absolutely heartbroken.
Fagen, I had on loan 13 years ago, and I have heard just ONCE from his owner, and that was in the first few weeks that I had him! He is now going on loan, from me, to a lovely girl who wants a pony just for the summer holidays. She has been coming over to ride him a couple of times a week for the last couple of weeks. Going to see her yard tomorrow, and all being well, he will be leaving me on Friday
However, I have no qualms about his well being, and he will only be about 7 miles away.
We also have Ziggy on loan, will be 2 years this August. His owner has been to see him a few times, but she lets us get on with it, she trusts me