Advice on growing Den aggregatum

[Orchidreamer]

I love the flowers of Den. aggregatum (or lindleyi, which is, I believe, the official name). I want to buy one, but I've heard that it is hard to grow. I do not have the "perfect" growing conditions (like a greenhouse or growing under lights)--I grow my orchids on the windowsill. What kind of conditions does it like? What exactly makes it hard to grow? Do you think I should get it? Thanks for any advice.