saw this service discussed on "South Florida Today" and gave it a try because it really made sense..... real sod for in home nature calls. It works like a charm .... I think Toby (my dog) actually prefers it to dealing with what's available outside (he's very territorial). Get a new one delivered each week so there is no real mess to deal with, and the old one is tossed so there's no cleaning involved. What's great is I don't feel guilty about being out of the house for big chunks of time.