Well, they are Sennheisers. I've been a fan of Sennheiser's clear sound since the 414s, back in the 70s. Yes, Sennheiser makes some cans that are less wonderful, or targeted to a modern lo-res, bass-heavy audience. OTOH they produced the 497, one of the two legendary under-$100 headphones for audiophiles.
After listening to these for a few days I can tell them from my go-to headphones, but they are pretty darn good. They are open enough that I get the benefit of the open sound that my ears prefer. My biggest issue at the moment is that they squeeze my head too darn hard.
Get a pair from Massdrop and let me know what you think - write a review!