I'm just a barefoot gal from Texas, who limped to the podiatrist with bursitis.  He advised me not to be with arch support even around the house.  After trying all kinds of inserts in my Walmart slippers, I ordered these in desperation.  They are wonderful!  Nice sturdy sole I can step into the garage in, decent traction on the non-carpeted floors, warm and easy to slip on and off.  And very very comfortable, they really have gone a long way in easing my foot pain.
And, if you have to have orthotic slippers, why not have them in a fun color?