I've never watched day9 regularly but whenever I do it's a joy. he seems to be a great guy indeed, and afaik never has been in any kind of YouTuber/streamer drama or anything.
Love Day9, have been following him since the dailies, with Monday as highlight of the week. Stuck around for Mostly Walking, which he still does. Also, at least once a year I rewatch the three VODs of Day9 teaching itmeJP The Build, The Pause, and voidrays… gets me everytime.