I have a Kanstul CCF 925 with a copper bell that I picked up every so slightly used at PiCK Music for about $1100. This flugel was play tested against:
Bach Strad flugel
Yamaha Shew Flugel - Silver
Yamaha 631 w/trigger - Rose bell
Yamaha 631 wo/trigger - Rose bell
Kanstul Chicago - Silver
Kanstul Chicago - Lacquer
Jupiter 846L
The only one of those flugels that it didn't out and out beat for playability and sound was the Yamaha Shew Flugel, but I didn't want silver. I could have play tested a Signature Flugel, but didn't for a few reasons:
1.) The Custom Class was more than good enough and cost less
2.) I only double on flugel and a true upper end flugel just wasn't necessary
3.) I was a afraid I would like it and buy it anyway
Against those others, the Jupiter was my least favorite, but if I only had the cash for the Jupiter, it would have been a viable option. Since I did have the money for more, it was not strongly considered.
I suggest looking for something good used such as a Yamaha 631 with a rose brass bell. I played on one of those for a while and really liked it. Getzens should also be considered and don't overlook DEGs. I know a guy who had one that was actually pretty good.