Well, as far as the switch itself, I can tell you it has been my daily driver for many years specifically because of the comfort and feel of the switch for heavy typing and general keyboard workload. There really is not a Cherry mechanical switch that I think compares in that regard, and I definitely think that is an area where the older buckling spring type switches suffer.
Like I mentioned, I do feel a bit that the entire construction of the keyboard matters; the feel of a keystroke isn't just the switch but also the keycap, the backplate, and general rigidity of the entire unit. My actual main drivers for the past few years have been the HHKBP2, the FC660C and the 87U, and they all feel a fair bit different from each other due to the construction of the rest of the unit. The HHKBP2 is a full plastic construction and the end of travel is pretty different in feedback compared to the 87U since it has a super rigid construction and a metal plate against the key landing. Again though I should mention I have never owned one of their Type Heaven models, and every other Topre keyboard I have owned has been among the most solid construction I've used, so it would not surprise me if that model is also very solid.
All that aside, I think about any configuration of a Topre switch is going to be ideal compared to most mechanical switches if your main goal is typing and workload comfort. Topre switch keyboards have been my main drivers for so long pretty much exactly for that reason, and it definitely has not been for lack of experience with other switch types. Ever since I got my first one, I've almost always wound up putting one back on my desk by the time the next work week gets going.
