Mr. Z is probably my go-to for watermelon slush. They use real watermelon during peak season, so you are guaranteed that it is fresh. The miniboba is also one of my faves here just because it is sweet but not overwhelmingly covered in syrup. My friends also seemed to like the place! We had watermelon slush, house milk tea, oolong tea, and guava tea. The selection of teas are really great :).
I also like how they made the place very homey and cute. There is a grass area and an area perfect for pictures and to hang out.