Thank you all!
I'm growing this plant in a wire basket. It is growing outside, winter minimum last winter 8ºC (normal would be 15ºC) diurnal around 22ºC. In Summer min 22ºC and max 28ºC (and the heat peaks, of course).
Getting watered every other day and sometimes sprays. Hanging in a big bush of Hibiscus schizopetalus it gets dappled sun. The more sun it gets, less green are the leaves, but his is reversible! The wiry roots often die away but regrow with ease. Maximum ventilation, of course.
I found it a easy plant to grow. Nothing to compare to the close related Miltoniopsis and their hybrids, unforgiving to high summer spells and low humidity.
So far disease free, no pests. But yes, a very untidy and spreading growth, but, on the other side, mostly two new grows per lead, and often two growths one after the other. Not every lead flowers, last year I had three flowers, this year it will be eight.