Checkbook Pro hits the sweet spot on features; neither crippled nor bloated. I don't want a
"financial management suite" full of 3D budget graphs that make me feel guilty. I just want to avoid bouncing checks and also have a general idea whether I can afford a new iPhone. This app does the job. It's fast, pretty, and easy to learn. I used Quicken for many years and had no serious complaints with it, even running under Rosetta, but I got tired of waiting for a native version, and it's ugly.

I didn't rate the support or documentation for Checkbook, because I've never needed either.