I can't speak for the latest Ohm speakers, but if they are anything like the older ones, I would not hesitate to buy them. Last year I bought a pair of Ohm Walsh 2 locally for $250 from a gentlemen that bought them new in the 1980's. I never owned a pair of Ohm before, but I was blown away by their sound. In my opinion the imaging is similar to the Magnepan 1.6 or Martin Logan Aerius that I previously owned, but you are not confined to a small sweet spot and you can move anywhere in the room and they sound the same. They are great for jazz and acoustic instruments, and make them sound like they are in the room with you. Also they seem easy to drive. Of course because they are small, they don't have a lot of bass, so I would not use them for Rock music. and because they are old, I'm sure they could use a refresh (new caps etc.). But taking them just as they are, to me they are excellent speakers.
