Still the standard for bottom paint. If you run 100 to 200 hours a year it will leave a protective coat just thin enough for the next year's application without much sanding. High CU content avoids slime buildup.
I give my boat 2 coats every spring before launch. No scraping at haul out, as the pressure from a garden hose cleans up the bottom nicely. The paint applies evenly over the previous years paint with a light sanding and solvent wipe. I don't like the fact that the paint has almost doubled in price in four years!