When I last used it about a year ago (i purchased it) it lacked many basic features a deal breaker for me was not showing the line number of errors, this made it useless for large scripts.
Sublime Text's search and replace is light years ahead of Postico or PgAdmin.
Also syntax highlighting on a nice dark theme is much easier on the eyes and more productive than white theme.
Sublime Text 3 also has auto-complete - if you install plugin to search ALL open files not just current, then this works really well so long as you also open files defining your schema. Snippets can add even more powerful auto complete.
