Just make sure you buy the right size and they should be fine, it says go up .5 but normally I would go down .5 for Gucci so I have no idea for these, probably do as DSW instruct. They should stay on your feet as you lift your foot through or you will twist your ankle or have to skate along, if they are too small they will dig in the front, your foot will not go in far enough, your heel will look ugly overhanging the back and hurt with every step.
I wouldn't expect this model to feel like a pair of Uggs but the heel height seems manageable even in a mule, the colours are pretty, the logo not too in-ya-face and they are a bargain if they will fit you in size and style.
If you have another pair of Guccis or Segio Rossi shoes (they are made on the same last) then you will no no one makes better shoes and are really comfortable but I wouldn't buy ANY pair of shoes just because they appear to be a bargain so I wouldn't recomend buying them just because you can.