Well, it's not an "herbal" tea since it's actually made from a real tea plant. But, yeah, it's definitely an acquired taste, as someone else mentioned. It has a very...I call it a "dusty" flavor. I guess some would say it's "earthy". I'm not sure I've ever had a "good" cup of Pu-erh, and I don't know what a good brand is. Sorry.

It's named after the region in China it is grown in and often comes in these compressed "bricks" instead of loose or in tea bags. You scrape off what you need from the brick. Besides the usual health benefits of tea, it's supposed to particularly aid in digestion and lower cholesterol. It's often sold as a weight loss tea.