Spend the extra $200 and get the similar looking Toto Soiree. Made in Georgia, USA. You will never regret it. Soiree User Reviews
Or, if you were looking at the $1200+ Memoirs one-piece, buy almost two Soirees.
For one thing, it's got the weird tower-flush deal. It may be a challenge to find affordable replacement parts, like you can with a Toto.
Kohler gravity flush models generally haven't received high marks in this forum...my only personal experience was with a horrible, Clogger Kohler Portrait toilet that I finally ripped out and replaced with a Toto Drake, something I would have done sooner if I had known how great Totos are.