I've been to multiple Ten Ren's.
I ordered a honey milk black tea with tapioca to go. The drink was very good although a bit too sweet. I would love to sit and dine in however, the cooking smell from the kitchen circulates the entire dining area. Service was good.
Would still return as it is in the area and a reliable (I hope) brand.
In terms of beverages, I would probably still prefer this over Tea Shop as it is more consistent with its flavour.