I use it all the time. Attractive layout, multiple windows, bookmarks and a read later list that shows you the context of the page from which you saved the link. Separate contents, image and table pop-over windows. Works well in horizontal or vertical mode on iPad. A well-thought-out, polished app. The only imperfection Ive found is that new page loads sometime hang after a long session of following links. You cant download articles for offline reading. I use Wikipanion+ for that. Overall, though, Articles is my favorite way to browse the mighty Wikipedia.
DoubleChuck about Articles, v2.6.1