I have a Feisol and love it.
I have just started using my R5 (I am one of those dreaded "hobbyists") Love it! Auto eye focus is amazing and oh the RF glass! I intend to keep my 5DM4 too. Can't wait to travel again and get some great landscape images!
I have been to one of his classes and it was well worth it! I am excited to go to "the ultimate photography crash course" here in Indianapolis May 7th.
Roberts is a great locally owned camera, video store here in Indianapolis. They are authorized dealers for many brands and are very active with education offered both at their stores and around the metro area. I do business with them and highly recommend.