I went in the late spring-early summer of last year after final exams. The place was hardly busy at all, yet I found the teenage staff at the time kind of rude and snarky. The atmosphere of the place was otherwise pleasant, though I wish they gave you the option of tea in a ceramic mug rather than only paper&plastic cups.
So you're short on cash, missing the west coast, have a bunch of papers to write, and really jonesing for some bubble/boba/pearl milk tea . . . where do you go? Boston Tea Stop! Heck, even George Takei digs this place . . . I wish the plastic cups, etc. where compostable like elsewhere in Harvard Square, and the place itself was more of a place I'd want to hangout with a drink, but not bad. I especially like the rose pearl milk tea.
This is a cute little tea shop/cafe in Harvard Square close to Campus and Harvard Affiliated Housing, so you can't beat it for convenience. I did find it way to pricey to go to on a regular basis. Also I think it could have offered more for the price.