The Muse pump is so comfortable and super sexy.  I've walked for 10 blocks without any pain.
I like the splash of blue on the side, the suede on the top and the velcro strap.
The only "complaint" is that the velcro strap is a tad too long.
I wonder if it's just me because I have skinny ankles.
However, I LOVE the Muse Pump.
Get them if you want to wear heels and want to walk in them for more than a block :-)