I have used Romer-G a few times with a demo G910 at my Best Buy.
As the switches stand, they do not feel like MX Browns. At best they feel like a more resistant rubber dome. I saw a member use the description "like touching a rotten/bruised apple". I would say it's a bit something like this as well.
There is a new ten-keyless board (without numpad) that has these switches, called the
G410. It does not have the
awful keycaps the g910 does, and a standard bottom row. I would really like to try this model out.
All in all, even a mech with MX Reds (my least favorite switch) are still miles better in my opinion. I only recommend this keyboard if you want a gaming keyboard and nothing else because key mashing was not fatiguing at all. It would work really well in that scenario, but typing at above 80wpm was unpleasant to say the least.