I like LibreOffice because it's FLOSS and supports Open Document (formats). I use Calc for several of my personal spreadsheets. However, I personally do not lik

I like LibreOffice because it's FLOSS and supports Open Document (formats). I use Calc for several of my personal spreadsheets. However, I personally do not like a few things with LibreOffice, which I think help the notion among people that MS dominance is a given and that solutions like LibreOffice are not good enough: 1. It does not support MS Office keybindings and its menu structure by default (not referring to the ribbon interface here). That's not a great thing for an application that would like more people from the MS Office camp to use it. As someone who's used MS Excel for a long time and learned several keyboard shortcuts, I still take more time to accomplish even simple things in LibreOffice and am learning different keyboard shortcuts to use Calc. Ideally, it shouldn't be this way. I don't understand what LibreOffice gains by adopting different keyboard shortcuts. 2. The UI (icons, menu fonts, colors, etc.) looks primitive and needs a redesign to keep up with the times (I've mentioned this in some other comments on HN). 3. It lags behind in feature set and ease of use compared to MS Excel (as one example, try creating, editing and changing charts in both). This is not really as big a deal for most users compared to the two points above.