I love this place, it the only place you can get specialty teas the you can make yourself. And I do recommend you take the loose tea home and brew it yourself, because if they brew it for you your kids will be feeling the effects. You do have the option, though of picking out a tea and having them make it for you in one of their nifty brewing cups. But it will be very strong, I'm just warning you.
The selection here can't be beat though. Just about any flavor or herb that can be soaked in hot water and consumed can be found here. One of my favorites is the Japanese cherry blossom tea, also the jasmine dragon tea with pheonix pearls is very nice. They also offer free samples around the store of various types of tea, so you can see if you like it.