Here's my two cents. I have two brands that I won't buy. I ran a handyman/restoration service specializing in condos. One development of forty units had two toilets each and all were Crane.
Apparently they had a problem with the tanks cracking and spilling all the water over the floor. Naturally the water would continue to run until someone turned it off. This was a known problem but the manufacturer would only replace those that failed. The damage to this unit totaled over $30,000.00. The condo's insurance insisted they all be replaced and this was done with the full cost being borne by the homeowners. I don't want to own anything made by that manufacturer. The other brand is Kohler. I built a new three bedroom house house in 1996 that had five bathrooms and all had Kohler fixtures installed. This was done at the time because the resale market demanded this brand. Within six months all the flapper valves started to deteriorate, requiring their replacement at a cost of about $50.00 each. Kohler blamed the problem on the addition of the disinfectant that hung in each tank(turns the water blue). After the replacement flappers started to go awhile later, without the use of the disinfectant, I talked the local hardware store into obtaining generic copies for their stock. I had a few further problems with them and the person running the plumbing section at the store thanked me for getting them to carry this product as it became their best seller. I paid top buck for what I expected was a quality product and feel I was shafted. I won't consider that brand again. End of rant!