Dave 
2017 Toyota Sienna Minivan Limited Premium 7-Passenger 4dr Minivan (3.5L 6cyl 8A)
Lexus-smooth ride
 Love our new 2017 Sienna Ltd Premium - it's nearly perfect:  Lexus-smooth ride, extremely comfortable seats (unlike the 2018 Odyssey seats which are hard and very uncomfortable), fairly quiet ride, excellent JBL sound system to complement the Blu-Ray entertainment system, spacious seating, deep well cargo.  No issues with the new transmission for 2017 - this likely impacts only those 2017 Siennas built before Feb. 2017 (and Toyota has a firmware update for it) ... my Sienna is a Oct. 2017 date build with 1 mile on the odometer when I purchased it.  The backup monitor lacks resolution sharpness but good enough.  Generally, I like the latest tech stuff (which was why I initially considered the 2018 Odyssey Elite) ... but in this case, I prefer the older style:  knob for transmission gear changes on the Sienna (instead of buttons on the Odyssey) and the round knobs for the A/C on the Sienna.  Btw, the Sienna A/C vents are on the ceiling which is where it should be.  Most people don't realize that the 2018 Odyssey A/C vents for the 2nd/3rd rows are on the side of the vehicle, not on the ceiling ... this is a design flaw and buyers in hot weather states might not like this (btw, I don't work for Toyota and I like Hondas in general ... I just happen to be very thorough in my shopping research).  Previously, I had a 2010 Sienna Limited (Loved everything about it except the dynamic cruise option) and our newly purchased 2017 Sienna Limited Premium is so much of an improvement over the 2010 model.  It's likely the next Sienna design change will occur in 2 years but no guarantee to be better.  (My 2010 Sienna was actually better than 2011 Sienna in terms of quiet ride ... I believe Toyota made improvements in 2015.  And in 2017:  new engine and new transmission ... so my new purchase is actually a good value:  same body as the 2011 Sienna but vastly improved in the 2017 Sienna).  Currently, Toyota has a $3,000 rebate which helps make the purchase a really good deal.  My expectations, as with all Toyotas, is long term reliability (I didn't rate reliability since it's a new vehicle).  I do wish it had better mpg than 19 in the city, but this is the norm for minivans today (unless you opt for the Chrysler hybrid) and keep in mind that for 2017, Toyota came with a new, bigger engine for the Sienna with a 1 mpg improvement.  I also looked at the 2017 Toyota Highlander/Lexus RX which is a top seller for Toyota ... but it lacks the space of a minivan, and I love the convenience of a sliding door.  I have 2 kids, and my son likes his private space in the 3rd row while my daughter enjoys her ottoman style 2nd seat.   With the new Sienna, we took a road trip and the valet person complimented about how the Sienna Blu-Ray built in video monitor folds down in increments.  The 2018 Sienna has cosmetic changes - not a big fan of the gaping front grille, which is another reason I purchased the 2017 model.  Overall, excellent family vehicle especially for long drives.