Working, now, in Libre Office Calc, the big thing it gives me that a DOS based application (and I'm certainly old enough to remember how to do that sort of thing) wouldn't anything like so easily, is elegant presentations. I like a lot being able to drop out a single A4 page as a PDF that I can email anybody wanting or needing a summary of my total flying experience. I've not played with any recent iterations, but I imagine that most of the commercial products will do something like that also.
G