Yea, I've read/heard the same thing and from my experience...it's spot on. I've only grown one but it didn't last very long. I don't remember which species I had but it did really well for 3 years and then, for no apparent reason, it went into decline and died shortly after that.
They are cool and if I ever run across one at a show or something, I might try it again but I likely won't go looking for another one.
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