I have been using this for about two days now, and I am in love. This thing is heaven right now. It makes me actually want to do my homework and papers. I just love typing with this. Topre switches really are indescribable. It's no where close to a regular rubber dome, and no where close to a mx switch. It has a feel on its own.
I know what you're talking about. When using a great keyboard I find myself getting addicted to playing on typeracer.com =]
I also bought a topre RF 45g but I want to use it for at least 6 months to a year before writing a review.
The topre switch is good but definitely there are a lot of hype around it.
Actually a lot of rubber dome keyboards are great to type on (when they are new), but they deteriorate fast.
Contrary to your believe, I found the 45g topre to be very similar to MS natural elite
http://www.amazon.com/Microsoft-A11-00337-Natural-Keyboard-Elite/dp/B0000642RX/ref=cm_cr_pr_pb_tThe elite can be a very good keyboard if it doesn't have the diamond arrow keys and 90 degree insert/delete cluster.
I type faster on browns when playing typeracer, but since browns are so light I also have more typos.
I found that the 45g topre keys don't return as fast as the cherry switches.
I still enjoy the RF because of its build quality and excellent, beautiful keycaps but when I type fast I prefer the mx browns.