Thank you for the welcome :)
My rationalization for LibreOffice Calc is — As I see it, I have never used too many formulas and the complex reporting, but for organizing data. For example, I had a sheet called large-purchases where I had listed down all the things I want to buy, and then tracked things estimated price, actually price, total amount remaining, etc. If you see, it is just a database table with a fancy entry and some calculations. So Calc can do all that simply and for something more, I can either learn more of Calc and/or just use a db and turn it into simple personal app.
Yeah, my usage was not particularly deep. It would take while to see any issue, if at all. I would certwinly post here if there are any major troubles.