What's your boating experience? An 18 footer is probably the smallest boat I'd feel comfortable taking out to the Coronados, but only if you've got experience.
How much are those things brand new? You sure you can't just get a used boat that's longer and more designed for offshore at relatively the same price? It has a 6 foot beam. That's gonna get REAL cozy 20 miles offshore fighting angry yellowtail or facing waves.
30 Gallons is also the minimum for a decent bait tank for our waters. What design is it gonna be? What kind of pump will you be using for it?
Uforia seems to be based on the East Coast. Are you towing it back yourself to San Diego or paying to have it towed? That's thousands of dollars you could just spend on something else locally.
Btw, no matter how good their warranty might be (I see it's 10 years), how are you gonna get it repaired if you're here and they're in Florida. I GUARANTEE you something will need fixing, even on a brand new boat. But you're probably gonna have to suck it up and do it yourself or have someone repair it here. It'll be like you don't have a warranty at all (which defeats the major reason to buy new).
Lots of things to think about. Btw, since you're considering this type of boat and asking this type of question, you might be a rookie to boating. If this is your first boat, I definitely wouldn't consider this brand without knowing a lot more about it.
If there's one thing I would have changed about my own boating experience, I wouldn't have bought new with my first boat. Too many things to learn and too many mistakes to make.