I, too, have been looking at GnuCash as a replacement for QuickBooks. My trepidation lies in the effort to convert a long history from the one to the other. Not too surprisingly, Intuit doesn't make that easy.

Some light on the horizon comes from an Internet search for "Escape from QuickBooks". The second response (from DuckDuckGo, at least) points to article #729087 on lwn dot net. (And, yes, I did not list the URL literally in case Intuit decides to filter out such text.) Now all I need to do is muster up the courage to move twenty-two years worth of data from the one to the other.