Currently the best option for an immersive experience of how RO was intended to be played, if you are okay with 5x rates. No custom features that change gameplay dramatically, and the ones that exist are done well, like changing clothing color with quests that fit well within the game. global chat helps you find people to play with, and the market pretty good for the amount of players online.

Small community, which affects party availability and market. But everyone seems friendly, and it's the closest thing I can find to the vanilla experience. No multi client is just a big + for me all well. PS: I don't rememeber when I started playing, it's just a guess.