Does it actually work? I tried and it would always give up partway through the downloads (and most of the times when I ask in these threads it turns out the person recommending it doesn't actually use it, they just think it's a cool idea...)
I too have had rather disappointing results with Kiwix. Love the idea, but the implementation needs work. At this point, given the complexities of parsing Wikitext, I wish Wikipedia themselves would offer SQLite dumps of the latest text only content.