Aluptak 
2017 Toyota Sienna Minivan SE Premium 8-Passenger 4dr Minivan (3.5L 6cyl 8A)
Initially impressed, not anymore
 Our previous vehicle was a 2014 Honda Odyssey EX-L that we had leased and we were going to wait until the 2018 came out to lease another one. But no one could tell us when that was going to happen. Rather than extend the lease, we decided to give Toyota a chance.  We found an SE and drove it compared to an XLE, the SE is as "sporting" as a minivan is going to be. The XLE was too soft in it's responses and  we liked the styling on the SE better. Our is an SE Premium and since it's an SE Premium, it has everything you could want but oddly not things found in an XLE or Limited van.  Our initial impressions were good.  It was quieter over the road than our Odyssey ( road,tire and suspension noise has been a Honda "problem" for years, I've owned plenty of Hondas/Acuras)  the ride was a bit better.  The 3.5 V6 in the Toyota is strong and it's nice to have full manual control of the gears when you need it, which Honda doesn't allow.  The seats are OK, I think the Honda has better seats.  But after 8 months of ownership, I wish we'd waited for the new Odyssey.  The V6 in the Sienna has great power, but only at high RPM's.  The "Eco" mode is extremely intrusive and makes the vehicle feel sluggish, especially where I live with plenty of hills.  You can change this by putting it in "Power" mode, but you have to change it every time you start the car.  The eight-speed is slow and clunky sometimes and there's been a few "WTF" downshifts at slow speed that were horribly rough.  Toyota's Maintenance Minder system is obnoxious, especially if you are following their maintenance plan as provided with a new vehicle. At 5000 miles, the system displays "Maintenance Required" but if you are following ToyotaCare (which you must for the warranty), it's only a tire rotation. But you HAVE to take it to the dealer to reset the system! In terms of storage and seat configuration, our old Odyssey wins over this Sienna.  The third row seat isn't leather, but some awful vinyl that reminds me of my Dad's '78 Toyota truck and it doesn't acknowledge the higher quality vinyl out there like VW's V-Tex. That's inexcusable in a 40k vehicle.  The rear vent windows do open, a plus over the Honda. But in the SE, they aren't powered, they just pop open. In the XLE and Limited,they're powered.  Even an 87 Plymouth Voyager one of my friends had growing up had mechanical knobs in the ceiling to open the rear vent windows! And finally, the Entune entertainment system is clunky and infuriating to use at times. It doesn't sync easily to either my iPhone 6 or my wifes 6s, you have to used the stupid Entune app to make it work. To conclude, this will probably be the only Toyota we ever own and we'll be going back to Honda as soon as we can.  Lots of minor annoyances here and that detracts from the enjoyment of the vehicle.