Today I tried a Kul ES-87 with Cherry mx reds. I liked reds better than I thought I would. However, they feel a bit scratchy, and the Costar Cherry stabilizers feel mushy. The board improved by putting on a set of dye-sub thick PBT caps and Buna 50A-R O-rings. However, it is not in the same league as the IBM Model F or Topre-switch keyboards, such as the HHKB Pro 2 or RF 87ub 45 or 55g. I might keep the Kul around as a means of using my collections of Cherry mx keycaps and to provide some variety, but when I want real quality, I will opt for the IBM, HHKB Pro 2, or Realforce boards. However, when thinking about a board for work, the Kul with reds and O-rings is relatively quiet, but so are the Topre-switch boards. At home, it is fun to use my IBM XT -- music for my ears only.