Really good board, does everything you'd expect with the size constraints of an ITX.
Great things - really well built, big heatsinks for VRMs, good IO, 2 M.2 slots, one with cooler on front, one without on back (nvme only on back but sata and nvme on front), Built in WiFi with cool looking antena. 2 RGB headers. Very easy to use BIOS.
Limitations (not necessarily bad, but would be nice for improvements)
Fan headers - a bit lacking but does include a fan splitter in the box, an extra fan header would have been nice to reduce the likelihood of needing a fan controller.
SATA port locations, I know most people will probably use a M.2 and maybe then only 1 SATA, but whilst I wait for time to install my m.2 properly I'm using my old SSD and HDDs, so is a bit messy cable wise as the SATA are not all next to each other.
Front panel audio location - bit of a silly place as is at the back of the board and obstructed by GPU and m.2 heatsink so isn't as well hidden as I'd like, not the end of the world but was a bit fiddly to put in.
Overall, these are only minor limitations, I love the board and don't think there's a better AM4 ITX that I'd go for. There are cheaper ones available and you are probably paying a bit more for "ROG" but it feels a solid board and hasn't given me any issues really, if I had the choice to change I don't think I would!