The only real features missing from the free version is filtering the result set and multiple connections at the same time. For filtering I actually found it ea

The only real features missing from the free version is filtering the result set and multiple connections at the same time. For filtering I actually found it easier to use psql directly - but the GUI is nice for browsing data and making schema changes. I still bought it anyway after a few months to support them, it's saved me a bunch of time.