What can I say about Brew Tea Bar that hasn't already been said in 800+ 5 star reviews? The owners are attentive, the boba is good, the teas are refreshing and/or sweet depending on your own preference. The place is small and often busy, which isn't my favorite atmosphere, but they run the line pretty fast so even when it's busy so it doesn't take forever.
Even if this was really close to me I think I would avoid it as my "main" tea place just because of the crowd. I don't disagree that it may be the best tea house in Vegas but I think the degree of separation between the best tea and the second best is so small that it would be unnoticeable to the casual tea drinker.
As is, it is not close to me at all which means I always stop for a tea when I am in the neighborhood. Always.