You can see the leveling rewards here:
https://forum.euroaion.com/forum/16-important-information/
Main problem of the server is economy, people have been playing for 2 years so everything is pretty expensive, drop rate is miserable without p2w or events so get ready to save for months (or even a year) if you want "luxury" items like a decent plume.
People are annoyingly elitist, I have been asked to get 3500mb to do IS while needing to have full IS gear full mb without a plume to get that MB... If I have that gear I would not be needing to do that content, right? I have seen people waiting 30 mins in order to get a last GG dps to save 30 seconds of a kata run... Instead of saving 29 mins and a half and get a 200 less mboost guy while still pissing on hyperion's face, 404 brain not found.
Get ready to be whispered by the vultures that would never take you to hyperion but are willing to make you the "favour" of doing LDR with you (only once OFC)... Once you give them your quest they won't even remember your name 3 seconds later and ofc would never help you with any other content cause they have no more use for you... And no, I did not join any of those leechers groups, I rather keep the quest to give those ceras to people that play with me, not people that just want to use me... The funny thing is that those parasites speak as if they were doing you a favour...
Russian legion groups/alliances, better don't group with them, they just kick you without a reason or a word, so you will save time skipping their groups/alliances at least until you are very geared so they are sure you are useful enough so no kicks. Very big generalization here, but it's 100% the experience I have lived these 2 months. Not salty, just tired of their lack of manners... Btw, this is a russian server.
This server should be ok for your objectives, population is good and should be good enough to re-live the experience, though not for a long time, as it will soon look far more like a chore cause of the bad economy and slow progress.
Good luck.