I purchased a Glacier Bay 1.28 gpf round bowl toilet at Home Depot. It has the flapperless design, which is essentially a trough or rectangular bucket that tilts when you flush it. Anyway, it has been working great. I had already checked various reviews online for toilets before I decided on this one. At $88, it is a great price. I knew going into this some people said the seat is flimsy, and it is, but at that price, I threw away the factory seat and installed a sturdier seat. Not a problem.
I did have to make a very minor, simple adjustment to ensure the tank was filling to the 1.28 gallon level in the bucket, however, you may not need to make any adjustment if it fills to the marked line. If you do need to fine-tune the water level, then very gently bend the copper tubing that holds the filler spigot that empties into the bucket. Doing so will bring the level of the float valve slightly upward and so likewise affects the level of the water in the bucket. Not a big deal to adjust, the tube probably moved slightly during shipment.
By the way, this flapperless design has a 10 rating for flushing material, which is the best rating. It was done in independent testing, so it isn't some inflated rating from the manufacturer. This toilet works very well, much better than the 47-year-old 3.5 gpf toilet we had in place before. I looked at Kohler, American Standard and others and decided on this one. Oh, by the way, the Glacier Bay brand which is exclusive to Home Depot is also known as Niagara or Niagara Flapperless. In the U.S., the site is niagaraconservation.com; in Canada it is niagraflapperless.ca