I know this has been mentioned before, and I don't want to take anything away from the Aneros, however I just got one, and was incredibly surprised. It maybe that my prostate is already awake from my Aneros use, however it was more intense them my last few months of Aneros sessions.
I am wondering if maybe there is an obvious progression of internal, then external them nothing. I've had some great non Aneros sessions in the past, but this felt a little like I took off the training wheels and my mental capacity to focus on the prostate combined with the just constant pressure from the cradle allowed it to take off unencumbered.
Definitely a great addition to the team!