[asveikau]

I had the same reaction, why not just use the command line interface?

From there, I guess the value this adds is:

1. There is a UI, i.e. it has some autocomplete of sql syntax and it shows tables in a ... tabular format.

2. As others have mentioned, there are sharing features. Yes you could share a .db file, but with this you can also send a link viewable in a browser, with specific queries, etc.

#1 reminds me of MS Access from back in the day. Those were sql dbs underneath, but they had some interfaces to show you how to build queries. It wasn't a bad way to dip your toes into the basics of sql.