The bubbletea tastes good and it's always been a fun place to chill for me. I also worked on an assignment there for 3 or 4 hours and the staff don't try to shoo you out (but you should order more than 1 thing to compensate lol). They also give us pop corn to snack on.
The cakes taste like store bought cakes because they ARE ha ha. I saw the exact same cakes at Costco; they come in a huge box. You just get it if you want a sweet dessert, just don't expect anything special. They don't have a large variety of food. =(
Place gets pretty crowded at night so suggest you go earlier if you want to sit in. The staff there do their best to accommodate people, it just sucks the place is pretty small. You can also sit at the bar/counter if it gets crowded and it's not bad still. Good place to go with friends (but maybe not TOO huge of a group due to space issues).