Though not installed, my experience with these toilets in ...
344799
Though not installed,my experience with these toilets in Japan show they have passed the rest of the world in convenience and comfort. Upon installation,I am sure I will award it a fifth star!
53929
Difficult to install because of flanges on nuts; had to saw them off in order to fit nuts under toilet.
1653812
Although it really didn't fit my toilet, I still like them.  I have 2 Mansfield 160 toilets and I bought these because it seemed from the reviews that they fit, but I probably had the tank innards replaced at some point because these did not fit.  But once I tool my heat gun to them and bent it up so that they would fit, they are perfect!  Maybe think twice unless you have a heat gun?  But if you are crafty, then these are good and solid.
2671065
I really missed this type of toilet seat after moving back to the states from Japan. I bought the Brondell and paid about $70 to have it installed. I think someone with basic plumbing/electrical skills could install it herself. The Brondell S900-EW is better than the one we had in Japan.
848854
With my son's FaceTime help & encouragement I was able to install the toilet tank flush mechanism all by myself.
I've had to make a few tweeks since then but it is working just fine.
2256357
My best advise would be "don't buy the American Standard toilet from Home Depot to begin with.  This piece was only good for one flush, and the fantom flush came back.  The toilet is the worst purchase I have ever made.  Don't waste your money.  0 rating but it won't accept that rating.
1358158
I was sceptical. Most things don't live up to the hype yet I did want to try something that would lessen the time I'd have to scrub & hope I wouldn't have to buy new toilets to get the rust (yet looked like poo) stains off my toilets. Left it on for 45 minutes, scrubbed with the toilet bowl brush as normal. Then called my husband into the bathroom to admire our white toilet. We were both impressed & reviewing toilet bowls is not a past time of ours.
626018
I actually bought their "standard" kit on their website.  The "standard" kit is a bit cheaper, and does not include fill valve or bolts.  I personally prefer Korky brand fill values and my bolts are fine. Though the "deluxe" kit is probably a better value.

My Kohler came with a canister style vertical flush value.  So, similar in concept but only single flush.  I could swear it looked like 3", but no, it was 2".  I bought the 3" by mistake.. And I opened the bag so I couldn't return it.  But that is my fault so I don't blame the vendor.

Overall it seems to work very well.  The lever doesn't feel quite the same as common toilet leavers. Its not "hard" to flush so to say, but, I'd say a bit harder to press then a regular lever.  And I'm not sure about its strength, how long it will last before the lever breaks.  But, not real problem.

The lever actually has a rubber gasket around the square hole that goes in the toilet.  But, it seems just a bit too tight.  You can use it without the rubber gasket, most levers don't have it at all.  Or maybe it will fit fine in yours.

I had hoped that with the rubber gasket, I might be able to fill it to above the hole in the tank for the lever. No such luck.  Even with the rubber gasket it will leak out that hole. But they don't claim it will let you do that, so, it is a failure of the product.  But it would be cool if they would design it intentionally that way, with a really waterproof gasket and allow you to fill the toilet fuller.  But, no such luck.

Basically, I intentionally bought a brand new toilet single mode toilet then upgraded it to dual mode.  That might seem stupid, if I was buying a new toilet, why not get a dual to begin with?  Mainly, I thought I would have more adjustment with an aftermarket so it would actually be a better toilet this way.  And, ultimately it could be cheaper as dual flush toilets at the store cost a lot more.

Basically, I wanted to be able to use more than the 1.6 gallons of water for a #2.  I thought going this way, buying the single mode and then upgrade would allow me to do this and it does.

I'm only giving 4 stars instead of 5 since I'm not 100% happy with the handle, but, I'm sure it is good enough.

I did contact the vendor by email with questions and they were responsive. Good company.
3539855
Unfortunately the toilet came with parts that didn't quite work, the inside mechanism inside the tank so it doesn't flush as well as it should, so we are disappointed but don't have the time to deal with it.  Plumber said this happens often with items ordered on the internet, that parts are often not packaged properly.
2872610
I didn't realize until it was too late that you have to actually connect the toilet to pipes. Next time I'll consult a professional installer first.
2759426
The toilet was shipped without a toilet seat. The picture does NOT indicate this. When the plumber finished installing the toilet, he could not find the seat in the package!!! The toilet has a solid skirt. One can not reach below the deck where the seat would be bolted onto the toilet. It require a special bushing to insert into the bolt hole from the top. So, you can't just run to a plumbing supply shop to get a seat. Please ship the seat immediately. The toilet is also difficult to install. The plumber is top rated in the area. He hates this toilet.
979578
We have had this toilet installed for about six months.  I bought the dual flush to get around the California 1.28 gpf rule.  The dual flush has been adequate for most "situations" though my wife has managed to plug it a couple of times.  It is relatively quiet which is a big improvement over the old megaflush toilet.  There is a small problem with its self washing ability.  Most of the time it is OK but not always.  One other concern I have that I didn't check before buying is the cost of replacement flush valve.  You cannot find a replacement on-line and that includes the manufacturers web-site.  I sent an email to the manufacturer asking why I couldn't find a replacement part.  The response was that within the five year warranty they would replace the valve.  When I asked about pricing for when the warranty is expired the only response was that I would have to contact them about a replacement.  No price was given.  They are not carried in any stores.  I get suspicious when a vendor won't publish its pricing even when asked.  Due to this failure to respond I have since purchased a second toilet from a different well known company.  It also works well though not as quiet as this one.  If the cost of replacement parts is not a concern then this is a good toilet.
4927438
Ordered this baby after realizing the toilet was acting up.  The part showed up, I installed it, an we were back to taking craps in no time
4800696
The first order arrived with a cracked toilet. I sent Amazon an e-mail and they replaced it. The toilet works fine. I thought we might have flushing issues due to the small tank, but so far it has worked flawlessly. I would prefer a bigger tank. The instructions were complete and simplified the installation procedure. I would recommend this toilet where a 10" rough in toilet is needed.
3217366
installed this toilet 3 months ago...started developing "rust spots" at the bottom...  about 10 small circles of rust... i can scrub them almost away, but the spots (where i guess the paint has worn away) show rust again soon after... i called Kohler and they are no help.
4479975
I could not install it because the holes on the bidet attachment would not fit with my toilet seat. They should sell a seat that goes with it.
237067
I recently experienced a free-standing bidet in Italy for the first time and quickly became a convert.  When I got home, I checked Amazon to see what was available and was happy to find that I didn't have to install a separate unit; that I could simply attach a very reasonably-priced little unit to my existing toilet.

The reviews left me worrying about installation problems and about the effect of having one's sensitive parts doused with cold water.  My experience was that installation was very easy--no problems with leaks or breakage at all.  My experience using it is quite satisfactory. The fact that the water is cold presents no problem at all.