I posted
this review on AKG Engine and Transmission mounts both, but I did have just the trans mounts on by themselves for a night.
As stated in that thread,
these mounts in combination with OEM engine mounts are a terrible idea. And my engine mounts weren't bad at all in terms of wear and tear. NVH was insane. If I were only putting trans mounts on, I would've instantly bought something else. Sorry AKG for the bad words, but it's not a good idea in my experience.