Eclipse is a horrible engine, it's marginal unplayable because the server and client go out of sync so often, watching another player move is painful to watch, and "running" through a map boundary to another map can result in the client being unable to do anything.
If there's no fixes to the stability and syncing, I'd say that this engine is to be avoided at all costs. Though, the scripted NPC/Tile/Item make the engine far more versatile than it's predecessors, and thus more attractive to those with some scripting skill.