Tina's place was perfect for what we needed, a nice place to drop our things when we visited Shibuya. What we really enjoyed was that it was big enough for our large ski bags, which most other places were not.
The twin beds were comfortable, but the futons were not (just a warning if you're planning to use those as beds).. Additionally, the google maps location took us to the wrong street and the 'check in' details (while detailed) I couldn't open on my phone quickly (google doc), so it took us about 10 minutes to realize we were on the wrong street. However, this is completely avoidable if you'd open the document before you're standing outside the 'building' which I didn't because we were busy.
All in all, I'd definitely recommend this place to anyone looking to visit Shibuya. It was VERY close to the fun and not too far from the train station (though if you have very large bags, just keep in mind that it is a walk (8-10mins) and the way we went was up a steel uphill.... which was great for on the way back!) Overall, 9/10 recommend!