My two cents on the matter as a 2023 Sienna Woodlands owner. Toyota could have done much better than what they offered. Start off with bonehead decisions. Why did Toyota lift the Woodlands model just under an inch over stock, then attach a low hanging receiver hitch that drags the ground at the slightest deviation in terrain? Completely defeats the reason for the Woodlands model. Toyota should have lifted the Woodlands at least two inches over stock and put a receiver hitch that maximizes the departure angle. BTW, the receiver hitch is only used for a bike rack.
Coming from a previous Dodge Caravan owner point of view, nothing beats the Dodge's stow and go seats with a completely flat cargo area that can truely handle a 4x8 sheets of plywood with room to spare. If Dodge, or Chrysler now (Stellantis), made a decent product, I would not even consider the Toyota Sienna. The Sienna is the worst design for using it as a cargo carrier. The floor is not flat making loading a hassle, plus the second row seats can only slide forward so much. Forget about loading a 4x8 sheet of plywood. And what's up with not being able to secure the third row seats properly?
Next issue isn't just a Toyota issue, but industry wide here in the states. I could not find any make of a new mini van that did not have a bulky center console blocking access to the rear seats (without having to get out of the van). Why can't this be an option. Who needs a "sporty" console shifter on a family hauler anyway? Loved the Caravan for not having the center console.
Another head scratcher is the car battery located in the back. It would be ok if Toyota made the rear hatch openable manually. But, in Toyota's infinite wisdom, made the rear hatch electric open only. So if the battery is dead and the rear hatch is closed, there is no access to charge or replace the battery. It has happened to me. Yes, for the sake of the naysayers, there is a way to jump the vehicle from under the hood, but one has to be careful to do it correctly of some electrical boards can be fried. Again, Toyota engineering comes into play - Todays little jumper boxes do not have long enough cables to reach the jump attachment locations under the Sienna's hood. So does one take the chance of using real jumper cables that can spark (and cause who knows what damage) or use the little jump boxes with aftermarket longer leads which can easily get the Sienna going again?
And one last rant - why does the cloth interior only come on the base model! I cannot stand Toyota's softex seats. On trips of any length, my back gets soaked from sweat due to the seat material. I need a leather wrapped steering wheel due to the sweat of my hands eventually disintegrating the foam on base model steering wheels. Clothe seats and leather wrapped steering wheels are not a combination Toyota offers. If material longevity is an issue, the clothe seats in my 99 Chevy pickup are still in like new conditions without any rips, tears or discolorations. Cannot say the same of Toyota's softex seats. Need to go back to the "good ole Days" when one could order options separate from one another. These package deals are a waste of money and resources when only one option is wanted.
On the positive, the Sienna is comfortable (but not as comfortable as the Caravan which btw had clothe seats), has plenty of power, gets decent gas mileage, and is easily maneuverable,