My opinions:
* Incredibly overpriced
* Super ugly
* Overly complicated machinery
* Easy for it to get gummed up and not feed and hard to catch given you touch it so infrequently
I however use one on my frag tank, feeding the reef jerky with a bunch of extra freezer dried mysis added, dumping into my sump return. I removed the return pump completely and instead have a small powerhead in my return section which serves to mix and push the food to my return pump.
This obviates many of the issues, particularly that I don't have to look at it. For timing I use a home assistant managed smart plug, primarily because I wanted to ensure it would trigger the device for a controlled amount of time and then turn off. Most smart plugs aren't receiving commands of "run for 1 minute", they're receiving "turn on at 12:00"+"turn off at 12:01" and as a distributed system person that's not reliable enough for me. Kasa however does the timing controls on device, and has an auto off timer, which should be reasonably safe. I still didn't really trust it for this though.
My display has a cheap, Amazon, drum feeder + TDO pellets and I think it's realistically just as good.