Re:How good is the JDBC driver these days (Score 1)

Uh, no. On Postgres's own web site they link to a site showing a 42.7% level of compliance for Postgres 7.2 with the JDBC 2.0 API. While I'm not sure how important all these issues are, this level is not what I would call "good", let alone "great" and you don't have to get too intensively into it to find things that are missing.

I would be interested in knowing what the level of compliance with 7.3 is.

I would call the JDBC support in 7.2 "adequate".