There are a few Hoya's out there which make ideal houseplants, Hoya kerrii or the Sweetheart Plant is one of them.
these guys have plump leaves that hold water like succulents do, so they need lots of sun. I keep all of my Hoya in a very bright window with 6+ hours of daily sun. Low light = sad Hoya.
Watering: Water when the pot feels dry. If you have a moisture meter you can test that way, or go by feel. When the pot is light, gently aerate the soil and water thoroughly. Never let these stand in water.