We use Quicken and I love it. We are very tech-oriented people though. My DP used to track in Excel with an elaborate spreadsheet he created but I prefer Quicken, for the charts and graphs. I guess I am visual.
I would not be happy with paper because it is too much work! Quicken downloads our transactions and does the math for us - there is a lot less room for error if you write the wrong number or misread it or put the wrong number in a calculator.