I needed a shoe for Zumba.  My other walkers/cross trainers did not let me do the lateral moves that are needed for aerobic dance.  These shoes are great.  They are light weight, have a very neat look on the feet, have a narrower front area of the shoe which allows for the pivoting and lateral movements that are needed.
I did go up 1/2 size just so I have room for my socks.  If you don't wear heavy socks, stay true to your normal shoe size.