I recently bought an Inteliflo VS 3050 and had it installed on the old timer. It now runs about 14 hours a day. I can monitor my electricity usage hour-by-hour with something called “google power meter” which links to my SDGE account and my smart meter. The difference in consumption between the old pump and new is absolutely remarkable. The pump was down for a few days while the caulk on the new pump cured. When I turned it back on, google power meter basically shows that it has no discernible effect on the power used. Its as if it is not running at all.
Definitely get one. I got mine for about $900 online, had it installed for $50, and get a $200 rebate from SDGE. Its totally a no-brainer.