I was wrong in my post, the Elites and Elite Touring had the 10 speed in 2018. If you keep eco mode turned off the transmission is great. With eco mode on it just fights you to not downshift. Also the paddles for downshifting work great and if you say drop it down to 2nd or 3rd as you come into the apex of a turn it holds real nice for acceleration out of the turn.I've heard there were quite a few problems with the recent Odysseys' with the 9 speed. They are all 10spd now though and I think those are pretty awesome from what I've heard.
The only other real issue to watch on the Odysseys seems to be related to VCM (variable cylinder management). There was more of an issue in the previous generation where there were some instances of oil use similar to the issues LS powered cars had with the AFM. People make a little thing called a muzzler that basically alters a coolant temp sensor value that is only used to determine if the car should go into cylinder deactivation.
To be clear I am used to mostly older 4 speed autos from the mid to early 2000's so anything is a huge leap forward.