I like it. One example could be - Need to come up with rent calculations for rental properties, before I do the books.

Also, doing doing freelance project quotations with breakdown. Expected hours for each task and stuff like that.

This works perfectly for me. I have bookmarked to my main page. I just like spreadsheets.

But if anyone wants a bit more, I found https://ethercalc.net/ which I am exploring right now.