The lid breaks really easily so the machine doesn't think the lid is attached. It's also not the easiest if you use taller bottles. They sell a riser separately, but for the price it'd be helpful if it was just slightly taller.
So easy to use, a godsend for formula feeding! The bottles are always warm and ready instantly, and it takes up so little space on the counter. Really amazing product!
This machine is indeed extremely convenient. Yes, u may have to change the dispense spout after every 4 bottles, but u get used to it. It is very easy to set up when choosing ur formula brand to ensure the proper water and powder mix. It take about 5 mins to heat so at night time. I leave it on so that when I go to use it, it's ready!