This is a beta release. The character viewer works, though I am sure there are bugs that I haven't found. The Darzil's interface is alpha -- there are several issues that I haven't fixed and some of it is broken (note that anything broken is on my end, not on Darzil's end).
Fair warning: I may be slow getting a new update up (most of this was completed prior to RoI). The new content has been taking more of my free time than this.
If you have a crash looking at a specific item, it is easier for me to fix the feel free to email me your character/server and the name of the item in question -- that will make it easier for me to identify the real problem.
Recently changed in this version:
Added Anduin and Snowbourn servers to server list.
Fixed a couple null pointer errors.
Added simple identification of items that have progression (either based on item or character level).