Pgcli is good, but there are two "modes" to use DB. One is interactive querying, which pgcli is good for.

The other is developing a complex query and running it again and again, while watching the result, or maybe running multiple queries and comparing the result, etc. That is more of a task for text editor that can execute queries than a CLI query tool.

Now, I don't think this is worth the 30 USD. Something like the upcoming 0xDBE might be worth it, especially since you can avoid stupid Oracle SQL Developer that hands every time there's a network problem.