We've used A Leg Up on a number of occasions. Each time we're left wanting more. I showed up one day (with them knowing that I was supposed to be out of town) and the dogs hadn't been walked, 2 hours after I had been told they would. When I called to inquire, no one answered the phone, which is par for the course.
We have also used them on a number of in home pet stays. While the actual care takers have been friendly (especially Danny, who is no longer with them), they are not allowed to contact you (or you them) to find out how things are going. After some negotiating we convinced them to use our home phone to call us and give daily updates. In this day and age, how hard is it to send an e-mail or an SMS/MMS letting you know how the dogs are doing?
The response time from the main office is also very poor. They either do not reply or will reply days/weeks later when they do. Also, when you have scheduled a weekend walk and there is a problem, there is no one to cover during the weekend. They are closed.
All in all I think A Leg Up is a poor service that really doesn't go the extra mile for the dogs. The dogs are simply viewed as a revenue stream. I expect more for my family.