Yeah gutter guards seem pretty good in California where there isn't routine snap freezing and moss/weird-growth-stuff clogging the screens is less prevalent.
Just avoid those weird gutters that rely on water tension to pull the water flow back into the gutter. I hear those things are absolute trash since debris (especially needles) can still get into the rather large opening; the water flow sometimes overcomes the water tension and just sheets off the side; and you can't easily remove them if you do actually need to access your gutter/downspouts.