Tatami 5.
Yelp
I am flabbergasted that this slightly above average "restaurant" (it looks like a level above a prison cafeteria) has garnered such great reviews. Not just here, but apparently on tons of other sites, because the place is now constantly crowded.
I do not understand what the draw of Rose Bakery is. There are a FEW vegetarian dishes. The bread is great, yes. The service varies, depending on who serves you; some of the servers are great, some of them give you the deer-in-headlights stare.
For lunch fare in Tokyo, you can do better. It's slightly overpriced and portions are small... although it IS good. But for reasons beyond my comprehension, this little place has obviously been reviewed as "the" spot to go to, and hence people come here and think they are having this brilliant "experience."
I live in Tokyo. I've been to the Rose Bakery at least 30 times, mainly because of convenience. They are thoughtful about preparing the food; I will say that. So do not expect them to rush it out of the kitchen. Some staff speak English; some just give you that scared "don't talk to me" look. When they serve you bread for two (which does NOT come with every order, only SOME--so ask), they inexplicably give you one tiny pat of butter. Every single time I have gone there, I have to ask them for two (I speak Japanese). Finally, the last time I did so, one of them seemed to clue in as to why I kept asking. But still, I must ask.
They have a "deli" where you can buy some of the dishes they serve, but not many. They also have some desserts, none of which I felt were outstanding.
IF you are specifically in THIS area (and it is not on the main street), and you have nowhere else to go, it IS convenient and it is fairly good. But it is not a "Japanese" culinary experience. It is just a "healthy" restaurant in a building of shops; that's all.