With the expansion called the "Greymoor Chapter" set to release next week, Tuesday May 26th, 2020 I wanted to create this post as a buyer beware.
First, ask yourself this question. Do you enjoy and/or want to PvP in Elder Scrolls Online?
If you answered "No", to this question then this warning has no applicability to you, please feel free to buy and play the expansion, you will probably enjoy it quite a bit.
Now if you answered "Yes", to this question then please see the warning below.
PvP in Elder Scrolls Online has become terribly affected by huge latency/lag issues combined with recent changes that literally prevent players from queuing up to play PvP together. That's right, this is the first MMORPG i've run into that will not allow you to queue for a battlegrounds with a friend, guild member, or anyone for that matter, they completely removed the ability to queue with other players in any fashion for PvP. Next, the server that hosts their massive "open world" PvP environment called Cyrodiil has become literally unplayable for months now. The latency is so bad that players on average experience a 2-5 second delay after activating an ability during peak times, and no it has nothing to do with how many players are on your screen. When you do find a group of players to PvP with/against that delay increases from 2-5 seconds to anywhere of 5-10 seconds and occasionally doesn't even read your key input at all.
So you may be asking yourself, is this guy just disgruntle, maybe he just lacks skill, or maybe he has no idea what he is talking about. I employ you to do your own research, go check out the ESO forums, you will literally see hundreds of these complaints.