I've gone NDI and OBS for everything - pure digital is very nice. I only use Birddog NDI kit - tried some other vendors but would run into latency or frame drops. Don't miss analog at all. ProPresenter 7 speaks NDI natively so I feed all the slides and lyrics lower thirds via NDI to OBS - works amazingly well. Now if I can just get Pro7 to play a wider range of video formats. I seem to be transcoding stuff a lot more than I did with older versions.
Yeah OBS is a nice open source solution and I have had very few issues with it over the years. I'm always looking for ways to minimize gear that is needed to handle our weekly services since we setup and teardown every week. With that in mind, shifting to ProPresenter made sense, but I think the hardware side of things is a better solution for us since the software is always going to have updates and bug fixes.
I was using pro7 to stream to Resi and had the same speed problem with the audio. I we had purchased an ATEM CONSOLATION ONE ME HD PRODUCTION SWITCHER AND A RAY ENCODER AND THE PROBLEM HAS BEEN FIXED. NOW WE RETIRED PRO7 from live streaming and only does graphics now and video
