Gosh, this is a small furry world, isn't it
My 16 year old girl cat sleeps most of the day but she does get stressed in the cat box and at the vet, so I know she would hate a cattery. However, my sitter always makes sure she sees every cat every time and if they don't appear, she logs who is absent on her daily diary.
Also, because she's so good, I've recommended her to my neighbours (we're all big cat fans here) so she's at risk of being found out if she skips a visit or cuts down her visit times. Her reputation means everything to her, so I know she's as good as her word, and yes, we get a daily digest left for us when we get home so we know what's been happening.
She also offers a daily text, so if you are a worrier, this might be something you can request too?