There's something uplifting about walking into Bittersweet Co. in Hopkinton. Maybe it's the smell of freshly ground coffee beans, or the hint of lavender that goes into a latte, but ultimately, it's the joyful and inviting staff that'll keep you going back. The delicious sandwiches, salads, quiches and yummy baked goods are the icing on the cake (no pun intended). But these days, we could all use a friendly smile and this is what you'll get when you say "double shot of espresso, please." If you haven't been, go hungry and under-caffeinated and you'll see for yourself the magic that is Bittersweet Co.