Watching Diablo III morph before my very eyes has been a wild ride. Although I maxed out every class within a month of its release, I quickly noticed that my friends list was dwindling.
Folks were completely turned off by the lack of an engaging endgame and the Real Money Auction House (RMAH) first and foremost, not to mention the slow-going pace compared to other aRPGs (action RPGs) at the time. That all changed with the Reaper of Souls expansion, which heralded Loot 2.0 into the fray (more/better loot) and removed the sleazy auction house entirely.
It's been four years since then and the only other major content update was the Necromancer class. Any effort of a console port probably isn't enough to entice someone who's already played Diablo III inside and out, but if you're looking into it for the first time the Switch isn't a bad place to start.