The more I use OpenWebRX the more I like how well it works with my rtl-sdr devices. For direct sampling as well as monitoring favorite VHF frequencies, it just works. Like a lot of Linux radio SDR apps, OpenWebRX requires several start parameters, but I use a script to get the parameters that change and preload the ones that don't. Hence, I merely click an icon and enter what frequency and mode to use. It is entirely possible to create scripts that will configure everything for a particular frequency or band. QtRadio, with its modules for softrock and RTL-SDRs is not as smooth or intuitive. More CPU load too. Gqrx and CubicSDR load more heavily too. If I could (and will, once I learn the code better) change anything, it would be the rather bland waterfall colors. There are better waterfalls on some online servers, so it is possible. Some noise limiting DSP would be a good feature too. Otherwise, listening is good and mostly limited by the hardware. Methinks things will slowly evolve away from these 8 bit, drifty RTL-SDRs to stable, clean, 12 to 16 bit devices resembling the Airspy and SDRPlay.