I am not very well english-educated, so I found your post a little hard to understand. I'll try to give an answer anyway.
The problem is me, not the LibreOffice suite. I never take enough time to learn and comprehend this free office suite. The thing that I particularly don't like is the interface: since Office 2007, the new ribbon ui become the standard on the office suite, but LibreOffice (once OpenOffice iirc) never caught the occasion to refresh its ui, which seems to me, horrible and anti-functional with too many buttons and no tabs to switch.
Nothing much to say about LibreOffice Write, docx is not entirely supported but it's not a big deal, but Calc is another thing.
Many functions that are available on the Office suite are not on LibreOffice, enough said. Also, as I mentioned before xlsx are pretty broken, and it's no-good for a calculus-sheet.
I don't use Impress, I used to make databases with Office, but not anymore.