I had one and sold it. I didn't realize at the time just how lucky or unusually good the ride was, for me. I thought it would be simple enough to replace it later with something just as good, if not better -- in terms of enjoyable ride quality.
I have not been able to equal it, though, despite owning, and test riding, a wide variety of bikes, both vintage and current, and in between. Some bikes are closer than others, but none of them is really very close.
One option I was considering is matching it -- either with a custom build or with another bike with the same geometry and similar tubing.
Another option is CL, which I am definitely considering too.
If anyone knows of bikes that might give a similar, lively ride quality, please let me know. Maybe one of them will be equal or even better.