I am not at all fixed on using Asus. This one came from my time with Cloudscape Connect, who are Asus partners and I found it would only stay connected to 5G on the N setting, which I later discovered is pretty common and even then it was a bit slow. I went through a few Asus routers from them trying to resolve issues and it was only fixed when I moved to Vodafone.
Any thoughts on better options? It's an average sized modern property and the router is used for work as well as family stuff like streaming 4K video on Netflix, plus Youtube etc. I was just looking at Netgear and TP-Link thinking I ought to go for something that is wi-fi 6 enabled. We may be moving to a larger older property with a big garden, so I am also including that as a factor, however I know they are currently managing with a fairly ordinary router.