I have a Jay's Audio CD3 MK III and a Teac 701T transport. Here is my take on both. Even though I stream using Qobuz I still mostly play CDs and vinyl. I play at least 10 CDs a week and I got mad when $4000 transport made by a guy named Paul had the mechanism fail 3 times in 3 years and they would no longer service the unit. Turns out that this transport used a $15 generic computer CD drive that was never designed to spin discs for hours. Not going to make that mistake again.
Jay's CD3 MK III - This piece is built extremely well and is very heavy. It just feels like quality. It uses the last iteration of the Phillips mechanism and Jay's says they have a lifetime stock of them in case one ever fails. It has a feature that allows it to upsample to 176 kHz which can sound better on some DACs. The downside is that it dithers the first bit which prevents a DAC from decoding HDCDs. Since I have several hundred of these, that was an issue.
Teac 701T - I got this transport because Teac makes their own high quality disc drive and this player will do HDCD just fine as well as play MQA CDs (My Berkeley DAC does both HDCD and MQA). This is an excellent transport, especially for the money.
If I had to keep one of these units I would keep the Teac because of the flexibility. I have compared them to each other and I can't hear a difference. Frankly, the Jay's Audio is an issue of pride of ownership. I just love this piece and I smile every time I use it. I'm lucky to have both.

