It's not bad at all! (DesireHD/Inspire 4G here), free apps everyday never hurts. Although it does have its qirks, like when you click on the free app of the day it immediately goes through the purchase and download process. As for trying out apps, android market have a 15 minutes return period for app purchase as far as I know.
It's not too hard to get around if you want to check out the app store and grab some free apps. They have some straight froward guides over at XDA and Modaco.