Stow 'n Go seating is genuinely brilliant, fold the second row flat into the floor and suddenly you're hauling plywood sheets where car seats used to be. The interior space embarrasses most three-row SUVs, and it drives better than any minivan has a right to. But auxiliary batteries die with alarming frequency, transmissions have failed at 24,000 miles, and electrical gremlins will put you on a first-name basis with your service advisor. Owners either adore theirs after 150,000 miles or regret it after 30,000, there's almost no middle ground. If you're buying used, budget for an extended warranty. If you need the utility and can stomach the risk, nothing else in the segment offers this combination of space and versatility.
The Odyssey is the driver's minivan, quickest in class, genuinely fun to hustle around, and priced thousands below the Sienna, but it's aging ungracefully. Skip any 2018-2019 EX-L with the ZF 9-speed: hard shifts, hesitation in traffic, and transmission grenades at 93k miles even with perfect maintenance. Current models run the proven 10-speed and deliver on space, comfort, and value, but no hybrid, no AWD, and no rear ceiling vents (a dealbreaker in Florida with rear-facing seats) mean you're buying yesterday's minivan at tomorrow's gas prices. If you live somewhere temperate, drive spiritedly, and plan to sell before 2030's redesign, it's a sharp deal; otherwise, the Sienna's 34 mpg and standard hybrid make the extra cost disappear fast.