I received my TDAI 3400 and just spent the past hour setting it up. I still have a lot to learn, but I did manage to get to 98 percent room correction through Room Perfect, and it did make a very noticeable difference.
There is no way I will be making any definitive comments on the sound compared to the defending champions in my system, the formidable Line Magnetic 508ia integrated and Lampizator Atlantic DAC, both of which it would replace if I keep it. But I will say this much. This thing is a delight to use and based on a very early impression, this is going to be some battle!
Agree with jcarcopo regarding Neal at Sound Science. He spent 45 minutes last Saturday talking with me about the Lyngdorf. I placed my order on Monday, and the unit arrived today from Denmark. Top notch service in every respect.