I have been buying (wearing out, and re-purchasing) this style of mule from Aerosole (the ones whose names begin with "Cin") for many years.  They are always comfortable right from the start.  They add height, which is slimming, without being too high.  They are sturdy and secure, not wobbly.  This one didn't disappoint.  AND I received a lot of compliments the very first day I wore them!  They look great with jeans, trousers and pants.  Perfect for work or just being out and about.