I've been unhappy with Quicken 2007 for some time but didn't take the time to look for a replacement until I learned Quicken will not be compatible with Lion. I downloaded and tried several accounting apps and was as unhappy with all of them as I was with Quicken, until I tried iBank.
Converting my Quicken file to iBank was so easy the transition was close to seamless. I had a few questions before I purchased iBank and the email support was awesome. My questions were answered quickly and thoroughly.
iBank is very easy and intuitive to use. I would highly recommend it to anyone needing a personal accounting app for Mac.