L'il bit of a thread necro, but for more experiences...
I have one on my GTI. It's been pretty useful, and good for removing some of the digital lag. I rarely put it on Sport+ as Sport on that plus Sport mode makes it pretty touchy. City works well around town. I use Eco on that and the car settings as a Valet mode of sorts, or when I take my daughter who doesn't want to drive for lessons so she at least knows how without getting scared by throttle response. :/
I ordered one for the Ram and it should be in the mailbox tonight. Fingers crossed it works as well.