OK, sorry to hear you lost the plant. I would have thought they would take a light freeze, but I have never "challenged" that notion. I have sold my last two up for sale but am keeping the (really) last one for myself, just to see if I live long enough to see it bloom. The vine is now about as thick as a pencil and is 3-4' long. I can't tell the true length since I continue to intertwine the vine back and forth through the trellis as it grows. Thus it is only approximately 18" tall, not counting the pot. All three of the last ones are nice and large and healthy, but mine is the best of the lot.
Maybe when I (finally) get that sunroom built, I will be able to let the plant spread its wings. It sure is an unusual orchid compared to all the rest I have.