I’m not sure if they’re frozen, but they do have fresh strawberries under hashgacha.
They also sell fresh blueberries. While the hashgachos generally believe there’s no issue of tolaim in cultivated blueberries, experts have checked them and found scale insects in the crown part on top of the blueberry and have found maggots inside the berries themselves. Kosher Gardens came out with the first ever blueberries where they check for these insects.
I now buy all my produce from them. Romaine, cabbage, iceberg, baby spinach, cauliflower, broccoli, scallions, cilantro, parsley, arugula, dill, kale, and mesclun. Many of these items I’ve never even had before. Also, there are quite a few heimish hechsherim that allow only Postiv produce, which is a big hiddur. I will also use Eden or B’gan products too.