I purchased the BACCH4Mac and it works fine on my 2014 Macbook Pro. It only took a couple of hours to set up from scratch. The main problem was getting rid of old Mac programs such as Soundflower and Boom2Boom which interfered with it.
I have a very difficult asymmetric speaker positioning in my living room and I was impressed that it made my speakers disappear and the quality of the voices in choirs was scary - it was so clear.
My system is tri-amped using two subwoofers with two DEQX units and I thought it was pretty good but the BACCH has taken it to another level.