I have one of these, see
I got it last September, it had one spike in bloom. It has grown a second spike and both of them continue to bloom. Each flower takes about 4 weeks to develop, then the open flower lasts about 1 week before falling off. Usually the 2 spikes overlap by about 1-2 days when I have 2 blossoms at once!
OK, about conditions:
I live in San Francisco, very near the Golden Gate, so it's a pretty maritime microclimate here. It's usually in the low 60'sF here in the winter, high 60's and
really foggy in the summer, and I have this orchid in a north-east corner of a glassed-in front porch that's unheated but is really more of a room of the house rather than an outside walled-in porch.
Anyway so it gets direct sunlight in the morning, filtered through a window and a Venetian blind, then the rest of the day it gets plenty of indirect daylight through windows on 2 sides. I meter this at about 3000 footcandles early, and 800 footcandles later. On overcast days it's only 1500 footcandles in the morning.
The humidity in the room is almost always above 70%, unless it gets very warm outside. And I have a big pebble tray for it too. In the late spring and all autumn that's typical (mid-70'sF, very occasionally >80F). On days like that I open the windows to improve air circulation and to reduce the greenhouse effect in the room. Quite often, especially on cooler days, humidity is above 90%.
This orchid was nurseried in San Francisco before I got it, so it needed virtually no acclimatization period.
When I got it, the old spike had four old flower nodes, so I think it must have started blooming in May or June. Here it is, January, and still going! I don't know when it will be dormant, if ever.
So: Warm-growing? Well, warmer than most Masd's, for sure. I don't know about really
warm, though. If I had it in the similar porch room on the south-facing side, where I have my Vanda coerulea, I doubt it would do anywhere near as well.