The only Ohm I've heard is the old F. It was amazing, if not capable of decent SPL.
I am buying the 100-S3's myself in the next few months. I agree that one should not buy speakers without an audition, but more importantly an in-home audition. I'm replacing Deftech 2006's that I have pretty much disliked for the past 7 years. The audition was great, but my real-room experience has been anything but satisfying. In fact, I've already put the Deftechs out to pasture, and am using my old Pinnacle Classic Gold Reference again.
Anyway, Ohm has a 120-day trial period. They will customize just about anything you want, and they accept older models back regardless of age towards the purchase of newer models. Or, you can order upgraded drivers for your older speakers.
I personally believe that Ohm is what I am looking for. If I am wrong, I can return them up to 4 months later. I'm willing to take that chance.
-S