I rushed to buy this express delivery as my hoiday was in 3 days time for a week in spain. I had to pay express and it arrived b4 the holiday thank god. I was having a cat sitter but out of my 3 cats, one doesn't like other people so i looked for a 7 day feeder. i could only find a 6 day, this one and the day i was leaving they'd be fed by me anyway, so 6 was fine. anyway i just cancelled my hoiday and re arranged, but that is not to do with the cats. Anyway when I got it it was easy to set up, i did 6 days at 10am everyday. before i did this as at this point i was still going on holiday i had to do a test to make sure it worked. YOU MUST DO THIS!!!!!. It worked and when my voice came on the cats looked so funny.....anyway i showed them and them ate from it straight away. With Boo my boy I added some treats so he went for it....worked a treat. so anyway now i go next month and this wil do the week. i leave so many big bowls of dry food out of royal canin and science plan, but they like their wet food. i might get another just for treats per day. and yes i leave about 15 itter trays out and 10 water bowls. my neighbour will check in on them too. but they are happier alone with eachother than with a stranger coming. great buy, wish the bowls were bigger though. you can also have it for twice a day feeds so 3 days worth. LOVE IT!