I had been interested in getting a Lomi because it seemed like a great way to replace my countertop compost bin and finally be done with the wet, leaky green compost bags that line it. I was also looking forward to having nutrient dense compost that I could use for my outdoor and houseplants instead of sending it off to no man's land via my municipal green waste bin. Luckily, I got to try it myself when my girlfriend received one for free through work.
Set up is easy and it has a nice design. It was not something that I minded having out or having to look at frequently. That said, the convenience, intended result, and sustainability promises are just not there. I still found myself using my countertop compost bin and transferring its contents to the Lomi each week and whenever I ran it the end result did not resemble dirt. The "compost" was used on a house plant and it just formed a hard layer on top of the soil and grew mold. I haven't noticed an increase in my bill during the hand full of times that I used it but having an appliance run for 3/4 of the day can't be as sustainable as promised.
Overall, it seems like a solution to a problem that already has the most efficient, effective, and sustainable solution: compost tumblers and outdoor compost piles. These require no electricity, create usable compost, and are extremely simple (if you have the space).
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Lomi can run for up to 20 hours depending on the cycle that you've chosen. I'd want a more efficient product that can run in less time. To me, that would be a solid tradeoff for any sustainable back peddling.
Also, it should make real, usable compost - not whatever it makes now.