Hello everyone. I am a Master Plumber in Colorado. I have been pushing low flush toilets for over 20 years. I love low flow toilets. My company installs hundreds yearly. The Toto toilet is a marvel. Unless you need to use it. My experience with Toto's is not good.
There biggest flaw, splash back. Try it, put some food coloring in a Toto bowl, lower the seat and flush. The side of the seat facing the bowl will get splashed. Toto toilets are not sanitary. If you don't mind having fecal matter and urine atomized, thrown into the air, soaking the seat and entering the air in the bathroom buy one.
If you want a sanitary toilet, there are many choices. Western Pottery is my favorite. I’ve been using them for over 10 years and never one complaint. The next item, you need a Ferrari mechanic to work on the fancy Toto’s. You will need both bailout money and a retention bonus from your bank to have one repaired.
Most toilets take standard components available from any hardware store or home center. Needing a PHD in engineering to work on a toilet is ridiculous. Next time you want to spend a bucket of money on a toilet, buy a standard model and give the money you saved to a food bank. The hundreds of meals you will provide are worth more than any toilet.
Mike the Plumber