I bought this Hoya as a cutting around four and a half years ago, and it took that long to actually bloom for me.  It is an extremely easy Hoya to grow, but more difficult to bloom.  It has hard leathery leaves and looks succulent like, but actually prefers to stay on the moist side.  It is a native of Thailand and while the flowers are nice, I think it is grown more for it foliage and compact growth habits.  I recommend this Hoya to beginners and advanced growers alike.