FlDigi and the other programs with which it operates are the standard for emcomm, at least here in the Northeast. Even if you are not interested in emcomm, that should tell you that FlDigi is very reliable and will get the job done. Some settings have to do with the wide range of modes it supports. You can ignore the ones related to modes you don't use. No matter what software you use for digital radio, most of the headaches come from trying to get the control port and PTT switching ports set up and working correctly. You won't escape that step regardless of whether you use FlDigi or something else. Also, look into DXLab. It's Commander software does an excellent job of mediating between the radio/cable/ports and the software doing the digital modulation/ demodulation and display.