I bought this about 4 months ago and wanted to give it solid try before writing this review. Mostly, it’s been working well.  I have a chihuahua and the kibbles are small. The portions can be variable, but mostly (I keep saying that ;-) appropriate. I just changed the batteries today.  I have it set up to feed twice a day. I’d say if you’re going away for a 2-4 days, it will be fine.