Best in class, 4K dongle is chef's kiss
Favorite ergo mouse (~19x10cm hand), decent coating for grip. Other daily driver was the DAV3 which I love but wanted a slightly smaller version of and this one fit the bill for me. Battery life is decent for 4KHz mode, but I ran this mostly in 2KHz as a happy medium. I've also owned the Atlantis and Atlantis mini and they're all solid in QC across the board.