What these models share
All five are one-piece, 12-inch rough-in, 1.28 GPF, elongated, comfort-height (17-17.5"), Tornado Flush, CeFiONtect glaze, SoftClose seat included. They are stylistic variations of the same engineering platform — the differences are visual, not functional.
The five models in order of design language
TOTO Aimes ($900-1,000): the cleanest modern minimalist design. Geometric angular tank, knife-edge bowl. Suited to contemporary bathrooms, large-format tile, frameless shower. The "showroom favorite" of the premium TOTO one-pieces.
TOTO Carlyle II ($850-950): classic-modern hybrid. Slightly softer angles than Aimes, traditional toilet silhouette executed cleanly. Suits transitional bathrooms where contemporary feels too cold.
TOTO UltraMax II ($750-850): traditional one-piece silhouette. Looks like a "normal" one-piece but with Tornado Flush and CeFiONtect. The all-arounder — fits in any bathroom style.
TOTO Soiree ($1,100-1,300): traditional with skirted base. The visible trapway is hidden under a smooth porcelain skirt. Top-of-line for traditional aesthetics.
TOTO Legato ($900-1,000): contemporary skirted, similar form factor to Aimes but with skirted trapway. The skirted version of Aimes, essentially.
Direct visual differences
Tank profile: Aimes is angular and modern; UltraMax II is rounded and traditional; Soiree is somewhere between.
Trapway visibility: Aimes shows traditional curved trapway; Soiree and Legato hide it under a skirt; Carlyle II and UltraMax II show it.
Bowl proportions: Aimes has flatter, wider bowl; UltraMax II has deeper, narrower bowl.
Functional differences (small but real)
All five have Tornado Flush with identical 1.28 GPF — no measurable flush performance difference. Soiree and Legato (skirted) require slightly different installation but provide easier base cleaning. Aimes has the narrowest bowl footprint — best for tight bathrooms.
Which to choose
Modern minimalist bathroom: Aimes.
Traditional bathroom: UltraMax II.
Transitional bathroom: Carlyle II.
Easy-clean priority (any aesthetic): Soiree (traditional) or Legato (modern) — skirted base wipes flat.
Best value for a luxury TOTO: UltraMax II at $750-850 is the value sweet spot of this lineup.
Honest verdict
These models all flush identically and clean equally well. Pick on aesthetics alone — what looks right in your bathroom. The $250 price spread between UltraMax II and Soiree is purely styling, not performance.
Our Top Picks
Based on our analysis, these are our top recommendations: