It's worth noting that using some of these features bump you up into a different pricing tier. And last time I checked the usual way to achieve a recursive query was with the non-standard "CONNECT BY" syntax. I have found rlwrap does a lot to mitigate the pain of sqlplus, but I still use it (and Oracle) as little as I can possibly get away with.
I actually wind up using both. But SQL Developer is pretty heavy and I prefer using psql to a GUI tool with Postgres, so I wind up in sqlplus a lot (when dealing with Oracle, which is seldom).
