I owned the Harbeth M30.1 speakers and upgraded to Harbeth M40.2 and could not be happier.
I have owned many speakers over the years and finally found my home with Harbeth speakers.
I really enjoyed the sound of the M30.1 and I was considering adding a sub to get closer to a full range sound. Decided to upgrade to the new M40.2 instead. Best move I ever made.