Quote Originally Posted by ShasVa View Post
I've never experienced an FF14 expansion launch. But I have experienced several WoW expansion launches...

MoP: Okay at first but then terrible once questing got going
WoD: Horrendous even with new Oceanic servers, laggy to high-heaven, quests bugged up the wahzoo, queue times stretching to nearly a full day
Legion: Smoothest ever, I was present for the actual switch from WoD to Legion, and it is still the best ever
BfA: Don't remember much at all about this one, but I don't recall it being terrible
Shadowlands: Somewhat between BfA and Legion in terms of smoothness

With the recent influx of players to FF14, I could only guess how Endwalker's launch will go. I do hope that it happens without major (or even minor) incident.
BC and Wrath were both super laggy with people effectively lined up to kill quest mobs. Cata wasn't too bad. The rest of this sounds about right.