We have been using A Leg Up for 3 months now. We started out doing twice a day puppy visits, which were conducted solo by the same person every day. This was great to get our pup used to being home while we were at work, it was great for crate training, housebreaking, and socialization as well. This was $27 per day.
After all the shots were completed we went to 1 1hour walk per day, with other dogs. ($17 a day). This is certainly the best way to get your dog well excercsed and tired out!
The walkers here leave a journal entry every day, to let you know if the dog had any #1's or #2's, who they played with, and what they did.