I have a 2015 Grand Caravan Crew Plus, which is similarly equipped as T&C Touring L I think. So far it's been great, with the exception of the nav unit that was freezing. It was replaced under warranty without any fuss. I can't say, from personal experience, anything about the long term reliability of this van yet, but from the information I gathered, it's not as bad as some, even in this thread, make it out to be. They have their known issues, just like any other manufacturer, and the good news is that most of these issues were pretty much fixed from 2013-2014 model years. These were: weak brakes, transmission shift programming and a small percentage of problems with heads.
As for buying an ex-rental. I would not have a problem with it provided that, upon inspection, the vehicle looks clean and the price is right. I would not buy a 3 year old vehicle that already shows signs of heavy usage in the interior. However, since these vans are so popular, I would try to find either a private sale, or a privately owned one at the dealer. CPO means extra warranty, but as far as the condition of the vehicle, it means very little.
As for buying an ex-rental. I would not have a problem with it provided that, upon inspection, the vehicle looks clean and the price is right. I would not buy a 3 year old vehicle that already shows signs of heavy usage in the interior. However, since these vans are so popular, I would try to find either a private sale, or a privately owned one at the dealer. CPO means extra warranty, but as far as the condition of the vehicle, it means very little.