I've never particularly liked tapioca really. It's usually too starchy for my taste and in some ways ruins the tea for me. When I want the drink to last longer, I get the small boba in order to clog the straw though. It's fairly easy to make tapioca balls probably, as there seem to be multiple instructions available on the web and probably on the package as well.
The tea is my main concern. I still find it perplexing. Even tonight, I went to TapX and got black tea and then Quickly and got black tea. The difference was astounding. While TapX was as good as ever with its thick round and smooth flavor, with no aftertaste to speak of, Quickly was rather sharp, slightly watery and tasted more like sweet cold coffee than tea. It also had a bit of an aftertaste.
Somebody previously mentioned that it's probably just chinese black tea, but while I'd agree that Quickly uses that, TapX uses something else, given the complete lack of bite or aftertaste. I think that lends some credence to the rumor I heard that they use Assam tea there, which though, is yet to be determined.