The RM 30m's were here for about three months. Used them with a Bel Canto Evo 2i integrated and an Arcam FMJ 33 CD player.
Never have I experienced a more detailed speaker. Cutting edge resolution, fast transients and highly dynamic. The mid range sounded a bit shallow which I attribute to the neo pannels, and they had a tendency to "beam" which I also attribute to the neo pannels. The tweeter was fantastic however and produced a wonderfull airy openness. The two six inch woofers on the bottom were fast and punchy. The side fireing 10" woofers did a good job also but I kept wanting deeper bass. The sound seemed tilted toward the higher freq. range and the speakers didn't have the balance I was looking for. This caused me to listen at higher volume than usuall so I could experience more of the deep bass I knew they were capable of.
Finally after three months of minor tweaking and attenuating I gave up on them. I believe they need plenty of room to breathe and my room is only 15" x 20' It is also a very bright room and I noticed I was not enjoying the music any longer. I was not willing to try the new "wave guides" or swap the solid state components for tubes, maybe the tubes would have warmed things up a little.
Have not tried the other two speakers you mentioned but thought I would throw in my two cents.