I get one phone call 24 hours before my appt to remind me and let me cancel if I need without incurring their cancellation fee.

I don't mind - it was helpful yesterday when I thought I had a 13:30 because I had them to move it from my standard 14:30 but they scheduled me at 14:30 anyway and didn't do what I had asked - so at least I had a days notice to move some things around.