With 300 I only see 2 taps in my log with the default drivers...anything more than that just gives a cryptic message. I'm trying to see what support I have moving from HS4 to Hubitat. I also only get double tapped as a selection of # of taps in rule machine. I will take a 200 out of HS4 and add it to Habitat to see what happens tomorrow. THANKS!
Item 5, yes! There is a good integration between Hubitat and Harmony devices, although I'm able to do almost everything I do with my Harmony Touch/Harmony Hub with a simple Broadlink RM3 Mini integrated to Hubitat.
Item 6, yes. Marantz with Ethernet port are officialy supported.