It turns out that a 4" heel is very very high indeed.  Nosebleed high.  Especially if you're clutzy.
But these shoes are so cute!  And they make your feet like so tiny.  I highly recommend them.
Mostly I recommend them for sitting around looking cute, because I have found the bottoms to be a little slippery, and I've frankly been a little too chicken to actually wear them down a set of steps.
While I find that platform shoes generally take some of the scary edge off high heels, there apparently is a finite point to that axiom.  Which is not to say that I don't plan to enjoy them immensly.
Very retro, very chic.
Enjoy!