I've got an indirect comparison. I auditioned the Transporter a few years back and ended returning it and kept the SB3/Lavry DAC combo I've been using since.
I acquired a Touch 10 days ago and after comparing it directly to the SB3/Lavry combo (synced and level-matched) I decided to sell the Lavry.
When I concentrated only on hearing differences, I thought the Lavry was still ever so subtly better. However, when I was just listening to music for enjoyment, there were several times I forgot which unit was playing and had to check the input selector on the amp to determine which one was in-use.
Given the display modules for the Transporter are no longer being manufactured, I don't know how much longer the Transporter is going to be in production. Right now they are not too hard to find for about $1,300, but that is still quadruple the list price of the new Touch.
I'm personally very happy with the analog out of the new Touch but there are undoubtedly some who would still want to use an external DAC.
So, that's one opinion for you. The Transporter does have its followers so you should have like-minded people in your camp no matter what option you choose.