So far on the positive experience list:
Phalaenopsis
Paphiopedilum
Phragmipedium
Cattleya
Brassia
Dendrobium
Miltonia
Oncidium


Possibly on the NOT list:
Cymbidium?
Cypripedium
Tolumnia
Vanda (not ideal, long roots)
Phrag. Bessae