I've had my Long Nose Butterfly for several years now. I just moved him into a newly setup 270 gallon tank that has a few SPS frags in it. He was a model citizen in my 125 tank that had a variety of soft corals including Xenia, Xoanthids, Leathers and ricordia. Its been about two months now and he's been fine with the SPS as well.
I've got a few (bad) pictures of him in my gallery.
A great fish in my opinion that needs extra care to make sure he's getting enough to eat long term as he's easily outcompeted by more agressive fish over time.