I was excited when I saw this app. I use the Simplybook.me service on my mobile most of the time through safari.
However, the app is lacking many things that are necessary for me to be able to use it. Things like time settings and special days. Pretty much the only thing you can do on the app is make or change appointments.
It is very well put together, but they need to add the other features that I use simplybook.me for.