Her choice of song was one of the best possible. I actually don't like the original but it was perfectly suitable for her voice and I actually enjoyed listening to it. It fits her vocal colour, range and current skills
Her choice of partner for the song was perfect too. One one hand Chan's voice was identical with Brendon Urie's, on the other it was someone who is close with Twice so no shipping drama would happen and lastly Tzuyu was exposed to Stays. Though I don't know whether the last one is positive or negative thing 
(Don't take the last sentence serious. It's a joke)
The MV wasn't anything special but she looked amazing in it and looked like she was genuinely having fun. Every time I watch it it brings a smile to my face. It managed to show more of her character than all the group's MVs, in my opinion.
And lastly Republic Records started doing their job. From what I heard (questionable sourse) they are using Tzuyu's melody project to test the waters whether it is worth investing in these kind of promotions.
