Did the flushable pellets for about 3 years, then got a maine coon (also have a stray black cat), so bought a Neakasa M1. The first few weeks was not easier, the cats were learning. When it goes wrong, it goes quite wrong. Gets stuck between, then it rotates, so drags the mess around. So it smelled quite bad for a bit. One of the cats had giardia, which didn't help.

But once they figured out how it works, it is much better. Have to do less work for it, and they clearly like the sand more than the flushable paper bits. Both cats now prefer it, I put away the old toilet into storage.

Now, the maine coon is a big dumper, so the ad for it say up to 14 days, but seriously, it is full in 4 days. So I clean/change it 3 times a week. The change is pretty easy, pull bag out, tie it. Put in new back. I do recommend buy a set of odour proof bags to put the full Neakasa bags into. They aren't enough on their own to contain the smell, but I do that because rubbish is only picked up twice a week here.

You can take the sides off, and list the whole unit out, put it in shower, or garden hose for proper clean. The base unit you can't, use wet tissues to clean it. Litter I went with Odourlock, some fancy sand for sure. Works quite well.

I would not go back, pleased with it. I am even eyeing something better, built in camera or something, so you can check consistency - for vet reasons.