That EQ2U site is brand new, as is the data feeds.
From everything I've heard/seen, they're highly reliable now. The old site used a kind of half-assed way of storing data (which is partly why the site was so terrible). With this new one, they developed a system that would update from the game periodically (potentially every time you zone) to a "Census" system that acts as an intermediary. Supposedly its something they can use for multiple games, so they seem to have but a lot of dev time into it.
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