All things considered and despite its flaws and shortcomings, based on my testing and comparing it with other keyboards, I think the CM Novatouch is worth having.
The quality of the Novatouch is not up the the high standard of the Topre Realforce 87u, and the Novatouch lacks features such as an embedded numeric keypad, NumLock and CapsLock LEDs, DIP switches for alternative settings, and a reconfigurable Fn key. Nevertheless, it is currently the best Topre-switch keyboard with Cherry-compatible key stems, thus opening up a whole new world of customization for those who prefer Topre switches over Cherry mx switches.
I consider the feature set of the Kul ES-87 superior to that of the Novatouch, but in my own case, I have yet to try a Cherry mx switch that I like. My favorite switches are capacitive buckling springs and Topre 55g, with Topre 45g a close second. I also like some of the keycaps sets that are available for Cherry mx switches. Therefore, I am glad that I already have a Novatouch in my collection, and I will make it part of my keyboard rotation.
However, before buying another Novatouch, I would hope that CM and Topre would address some of the issues and missing features in the current version of the keyboard by producing the Novatouch 2.0. Altertatively, or in addition, CM and Topre might consider producing a 60% version that could provide competition for the HHKB Pro 2.