Ohm Walsh Micro Talls: who's actually heard 'em?

Agree with Z that very lively room is a challenge with most any speakers, omni/OHMs included. If you hear a reverb effect/echo when speaking or clapping in general, that is usually something worth addressing with the room acoustics.

Rug under and/or in front of speakers, wall furnishings or treatments at primary rear wall reflection points for your main listening position, windows treatments, other wall adornments to break up flat surfaces, furniture and other decorative items, plants, can all help. Keep this in mind as the room decor evolves over time. Be creative and experiment along the way.

Theres a fairly large rug a few feet in front of the speakers that takes up a good portion of the room. We're gonna get around to curtains soon :) Those should help, but truthfully the room isn't too lively.

FWIW, I recently removed some foam sound panels from behind my Ohms (they were at ear level). With carpeting and almost no windows in my cellar listening area, I think I might have overdone it with the sound absorbtion materials. If you look through this thread, you'll see where a bit of reflectivity isn't always a bad thing for omnis like the Ohms. I keep thinking that I ought to cover up my Plasma TV that sits behind and between my Ohms, but then again, they sound good right now, and I am afraid to guild the lilly. I wouldn't make any acoustic changes I couldn't remove easily. The foam panels were attached to the drywall with T-pins, and were easily removed. Just my $0.02.

Has anyone tried room EQ with omnis? If so, what were the results?

I mean using something like Audyssey, ARC, or MAAC, etc.