Also using PGPool in production on one of our more complex projects here; it's been reliable over the last couple years with varying amounts of traffic. We have

Also using PGPool in production on one of our more complex projects here; it's been reliable over the last couple years with varying amounts of traffic. We haven't gotten what I'd call a lot of it, but what we do get generates fairly high DB load at times, and what problems we've had have not been due to PGBouncer.