Kids Nite Out?

Has anyone used the Kids Nite Out in-room babysitting service or the mother/father's helpers? I would love to hear your comments & experiences with it. We have two children - 3 and 10 months, and although I'm not sure I'd be able to leave them without worrying myself to death I might be able to use a mother's helper in WDW. Last time we went DH became incredibly sick and I was there by myself with the two kids. I didn't know about Kids Nite Out at the time and really could have used some help watching the kids while I helped DH. Any comments welcome!!