This is a good thing. Not only does it provide an alternative to KSAN, but also an alternative to divert some traffic out of KSNA. Works for me, as I'm in LAS and SMF. Also, they are providing int'l service to MMSL. I find it equally interesting that KCRQ has customs on site, but isn't an int'l airport, nor int'l port of entry, nor customs rights landing airport. Granted any airport can be an int'l airport as long as customs is available, but there has to be some differentiation between a customs landing rights airport, int'l port of entry, and a customs user fee airport.
Also good to note that this is being run by former PSA employees. They do know something about being a regional, let alone know how to handle their passengers, so this should be good. I'd fly them just for the E170s alone, but adding PSA into it makes it a bonus. I just hope KCRQ works out for them, as it appears that SKW is the only commercial service flying out of there.