It takes long to perfect. It takes money for servers and much better than average stabilization. I tested it to prove legitimacy in their Pre-Alpha phase. They regularly update their website with new photos containing new content added. They've added all worlds, and finished all skills. They only have a few things to work on before releasing the Beta, which means that they will be finished with content and they will be aiming to perfect bugs.
As for the server stabilization in the coming years, their plan is to have an optional donator service that allows you to get perks such as extra bank space, donator only worlds, and an optional 317 gameframe.
As for leveling up, it is 1x.