Can't help but love the Core. I mainly hunt the beaches and love the way this machine discriminates. 95% of the time I know what I'm digging before I dig it. The other 5% is when I'm expecting a pull tab and the gold pops up! Bottle caps are very easy to discriminate with this machine. Pieces of foil are also easy to read unless it's a big ball of it and then you're going to get a good reading. I am also well pleased with how deep I am getting dimes and nickels. Nickels and pull tabs that are 10-14" deep means I will also pull most gold rings at that depth too. I wouldn't trade this machine for any that I can think of out there. It runs very smooth on the beaches...wet and dry......and it doesn't wear my arm out like my Fisher CZ-20 did even when I had the Fisher hip-mounted. I just wish they would have made this the ultimate machine by making it waterproof. I can see that in the future of the Core....or maybe the Makro. I understand they are basically the same machines with different designs.