For the same price as the uneven-quality Champion at HD (the price you quoted), you can have a Toto Drake these days. That's clearly the more reliable choice. And a great flush, with easily-obtainable, quality American-made replacement parts. Drakes are made in a couple of places, but many are made in the US. Ironically, the "American Standard" Champion 4 is hecho en Mexico.
And just so you know, I understand that American Standard is a mighty American brand, that used to be the standard for quality. I still have one AS toilet in the house (that's used maybe once a month) that was made in 1926. Three as-yet-unreplaced AS toilets are still going strong, with great (albeit water-hog) flushes and stellar looks from almost 60 years ago. We just rebuilt two AS shower faucets from the mid-1950s because they still look great and now work great again...so smooth.
But it appears not to be the company it once was, like Westinghouse. Westinghouse, the company established by one of the greatest industrial inventors and designers, George Westinghouse, inventor of the modern automatic elevator, the railroad air brake, a bunch of lighting and electronic stuff, and much more. It, too, stood for innovation and quality. Now it's a brand slapped on mediocre flat-screen TVs made in other countries.
Terry has opened my eyes to how horrible AS's quality control is, and user after user, reviewer after reviewer, say over and over that they received a defective product. A defectively-molded or glazed product that would have been obvious to any quality inspector, but AS sold it anyway. Because apparently they count on you not to return it. Why take the risk? Why not buy something made by people who take pride in producing a quality product? (Indeed, Toto makes some of its stuff in Vietnam, in Mexico and elsewhere. But it makes a lot of its stuff for the US market in...wait for it...the US! But the QUALITY of the stuff from Mexico made by Toto is just excellent. Because they manage the process right.)
And one final thing. Don't be confused by all this 4" marketing hype. The hole in the china is 3". The 4" claim comes from the size of the mouth of the valve, but it's a 3" hole, just like Toto is a 3" hole. I could claim a 10" flush valve. The Toilevangelist(tm) 10! Snappy! But it would still only have a 3" flush hole.
Okay, sermon from the Toilevangelist(tm) is over. But I just hope that you will seriously consider spending your money for a quality product from a US-based company that actually makes stuff here. And if you need to know where you can go to find it, PM me and I will point you to a local dealer.