Don’t listen to all the negative naysayers on this post. All you’ll get on these boards is a solid wall of whining, QQ and misery.
They’re angry about server imbalance, they’re angry about bots, they’re angry about not having RDF, they’re angry about perceived bugs in the game, they’re angry about class imbalance, they’re angry about pretty-much everything, and while some of their complaints are legitimate they take the negativity too far, and describe it as a ‘broken game’, when clearly it isn’t given that there are hundreds of thousands of people playing it and enjoying it.
In truth WotLK Classic is always well-worth playing, with the following caveats:
If your the kind of person who has a mindset of world firsts, speed running, meta/min/maxing/BIS/parsing who has no interest in anything but rushing through top tier raid content at breakneck speed with top progression guilds then it’s fair to say that you’re going to have problems playing catch-up.
If you prefer PvP then you’re going to find that some BGs may be challenging due to various issues which do include faction imbalance among other things.
Some of the massive mega-servers are Horde dominated. The reason for this is mostly due to the min/max/meta thing I mentioned earlier as it is perceived that Horde racials are ‘superior’ to Alliance racials. Early in the days of WoW Classic the big-name streamers and Youtube influencers made a huge deal about playing only Horde, and only on PvP servers for the ‘best experience’. Consequently everyone and their dog rolled Horde, joined a PvP server, and joined one of the huge megaservers.
If you like crowded highly-competitive megaservers swarming with players then you’ll likely want to roll on one, but if you prefer a more chilled experience you may wish to avoid them. It really depends on your playstyle.
You may also experience some problems getting groups for low level dungeons due to said removal of the RDF tool. Personally I think removing it was a mistake on Blizzard’s part, but that’s just me.
There’s also some people who say they have issues finding spots for PuG raids and L80 dungeons due to very high gear/performance expectations for invites – characterised by the dreaded Gearscore addon. This seems to be far worse on the megaservers, as they have a far higher player pool to choose from and so can afford to be highly selective.
Personally I don’t care about any of that, I don’t play on a megaserver, and I only play with friends of guildies, but again, that’s just me.
If you do decide to join, my advice would be to find a good, decent, friendly guild. Don’t just accept an invite from the first random whisper you get.