Only positive is feeder gives regular meals and the food hopper can be removed and washed. Kibble size I use and food brand is very popular, but is different from both sizes of food pictured in this product's instructions. The unit gives more food each feeding even at the lowest setting. I had to cut out 1 of 3 meals to get closer to proper daily meal size, but as food hopper level lowers, the unit spills down even more food. My poor kitty is over weight again. Basically can only use it if I am away. The others I have had were great for daily use. Other problems are the food hopper barely screws on and comes off easily when unit is moved. I have to keep it taped on to avoid spilled food when I add food to the hopper to keep it more full. It only runs on batteries and there is no back light on the screen; I find it difficult to read. There is also no way to see how much power is left in the batteries, so you have to constantly change them to be sure they don't run out while you're away and your pet starves. I am definitely going to have to buy a better feeder very soon.