I have not admittedly been on Ascension as long as some people who play here, however, I have noticed something which I really dislike.
The server is advertised as "Create your own class fantasy" where as this is true, you can absolutely do that, the broader picture is you're limited to very few Legendary enchants to compete in higher end raiding and for that very reason, the server is a huge contradiction.
When you have enchants that range from 2000 DPS to 7000 DPS, then expect a community to build around that with no toxicity, you're delusional. People have always been very critical and toxic over other peoples DPS and the variance on some of the specs shoots down any real chance of solid communities forming beyond a niche few elite guilds with core raiders who all just use the most broken enchant at the time.
Mythic is due out tomorrow and shortly after, we'll be getting Mythic 1-10 - the prediction is this, if Legendary enchants are not balanced across the board by the time Mythic 1-10 comes out, you may as well remove the "build your own class" thing from the server advertisement because that will no longer be true.... instead, you may as well replace it with "Build your own class up until a certain point... where you'll have to swap to the most broken enchant at the time or no one will want to group with you and no one will invite you to raids" because lets face it, people are strung up on numbers, always have been, always will be with WoW.
That said! and that was the criticism part
I still think the servers are being run well, Thrall hasn't been the most stable since launch but I'm enjoying it, a lot more than I do live Blizzard servers. I actually cancelled my Blizzard sub when I started playing here because the fun factor difference was night and day.
TLDR; server is great fun but please balance enchants properly because right now the variance between them is utterly broken/untested