This Ten Ren's is very clean but the service is a bit slow.
I went for lunch and the shop was not busy but we had to wave down the waiter multiple times in order to get our orders taken.
Asides from that, it is a very cozy environment filled with various types of drinks and snacks. They have a good variety of tea flavours which you can get in either hot or cold as well as slushy based drinks. My personal favourites are the drinks which come with ice cream in it (you can find that under their horoscope section).
Everything is a little pricey at Ten Ren's so I would only recommend coming here if you are looking to relax with your friends and have a delicious drink along with a few snacks NOT an actual meal because for the price you will be paying the meal won't be worth it.