I use them mainly for work and like them a lot. They seal incredibly well and don't leak sound at high volume, unlike many of the other closed cans. Weight is a bit borderline for me but generally not an issue unless I'm extremely tired (unlike the XC which were abysmal).
It seems they do require some decent pairing to get the best out of them. The Oppo HA-2 is excellent with them, however I don't enjoy them with the HA-1 or directly out of a phone (iPhone 6+). Still waiting for proper balanced XLR cables to be released.