How big?
5.7MB seems stupidly large for a very simple app that does very little. I am frequently amazed at the size differences between functionally similar apps - and that has become one of the things I look out for when choosing an app. If one programmer takes just 600k to acheive what another required 6MB to do then I tend to go with the 600k on the grounds there is a good chance that programmer had more of an idea of what they were doing - or at least they didn't just download a bunch of bloated libraries and components and stitch them together.
As for the app it would need SugarSync support to be of any use to me.