I've heard them a few times - twice at RMAF and once at Dan Wright's facility in WA state, as he uses the Ulysses as one of the sets of his demo speakers when he has visitors who want to listen to his gear.
The new versions of the speakers that have been introduced over the past year are a marked improvement in terms of extension, resolution, and coherence over the previous versions. They are very high efficiency and work well with both low power tube/SET amps as well as higher powered solid state. I will seriously consider them when I'm at the point of being ready to upgrade speakers.
I've met Lou Hinkley a couple of times and spent a lot of time with him at the last RMAF I went to. Like Dan, he is also a great guy and fun to be around.
I recently purchased three sets of Lou's Daedalus Isolation Devices (DiDs) for isolation support under my tube gear. They are fantastic, and I will be writing up a review on them here shortly.