You are correct I do live in California....why is a 2.5 HP pump too much? isn't more better when it comes to the pump and filter on an ig pool?
Too often people and pool builders buy/use pumps that are WAAAY overpowered relative to what their filters and plumbing system can handle. It's like putting Ferrari engine in a Yugo - lots of power as long as the car doesn't come flying apart when driving it.
You are apparently not new to this forum but you have no pool information in your signature. Without any information about your pool equipment and setup, there's no way to help you find the answers you are looking for. When purchasing a pump, overall horsepower is only one of many things to consider and bigger isn't always better.
As for pump/equipment brands, it sounds like Jacuzzi is trying to break into the pool market and sell through a big supplier like Leslie's. As
gwegan pointed out, Pentair, Hayward and Jandy and the largest pool equipment suppliers in the US market. You will find most people on this forum have one of those brands. Depending on your budget for equipment replacement and overall willingness to risk using a new supplier like Jacuzzi, that particular pump may or may not be a good investment.
Please update your signature line with your current equipment setup and post back with some descriptions about your pool's plumbing (pipe sizes, number of returns, skimmers, main drains, distance of pool to equipment pad, etc) and the Experts here can help you figure out how much pump you actually need.