Osmo X Marusan comes across as a stylish, vibrant cafe in downtown Montreal with a lively vibe, strong coffee and a notable lineup of matcha and hojicha lattes, plus creative Japanese inspired sandwiches such as tamago sando and karaage sando and curry bowls; the space and terrace are great for studying or hanging out, and a casual DJ moment adds to the atmosphere, but the place is often crowded and loud with long waits for food at peak times, and some dishes or portions can feel small or uneven while service can be variable, yet the overall experience centers on the ambiance and drinks and many guests say they would return to try new items.
Came here for the first time & ordered the Katsu Sando, Tamago Sando. I had to come a second day as they sold out on the weekend around 2pm. Sandos were tasty, juicy & very good for value. A lot of people look like they're studying/doing work but I feel the music that plays in the background is a little too loud for that kind of environment. I do appreciate the decibel meter tho!
Food is really good! If you see the line is long don't worry it worth it. & just incase anyone has problem finding the entrance like me, it actually locates on Clark st & it across the ESSO gas station. I attached a little guide hope it works😬
found this little spot in a TikTok video I was sent. pleasantly surprised! Kinda hard to find at first.
We had a matcha & a coffee, around 15-20$ for both. love the vibes, alot of students, & some good background music (music that was a little too loud?) other than that, no other gripes. just a cool place to visit if you want to see something different in Montreal :)
Absolutely loved my experience at OSMO X MARUSAN!! A friend & I visited MTL for a few days & had breakfast twice at this cafe. We got the matcha latte (hot & cold) & both were great. We tried two breakfast sandos: the tamago (8/10) & the katsu (9/10). There was a bit of a line up & waited after ordering but the atmosphere was great & staff were very kind so the wait was not bad. I would definitely make another visit during my next trip to MTL!
i got the tamago sando which looked better than it tasted. 😆 it was just mayo & salt, which was a bit plain for me. the flat white was also just okay.
the café was super busy even on a tuesday afternoon, probably because it's close to McGill, with lots of students on laptops. It was also pretty noisy, but the space itself was well designed & very aesthetically pleasing.
i grabbed a bag of coffee beans before leaving & was pleasantly surprised that it came with a free coffee. i went with an americano & it was excellent! very nutty & enjoyable. would def come back for it!
Sep 24, 2025
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Malgré le décor mignon & la nourriture bonne (nous avons essayé des cafés, matchas, tamago sando & karaage sando), nous avons vraiment eu un service vraiment désolant qui nous a donné une expérience négative au total. Lors d'une erreur faite par le staff (matcha chaud au lieu de glacé, matcha sans sirop au lieu de matcha érable), nous nous sommes faites blâmées pour cette erreur & on s'est fait addressées vraiment bêtement, de manière borderline passive-aggressive & impolie même si on a mentionné l'erreur gentiment. Même plus tard, on s'est faites servir avec attitude & & on s'est faites dévisager lorsque l'on a demandé pour une boîte à emporter. C'est réelleement dommage de se faire servir ainsi quand on paye à l'avant & on donne un pourboire même avant d'évaluer la qualité du service. Je travaille en restauration & jamais je traiterais des clients de la sorte, qu'il s'agisse de leur erreur ou de la mienne.
Exceptional cafe with a one of a kind space. Everything feels expertly curated, plenty of seating inside & a wonderful private terrace if you'd like a little sun. The matcha was flavourful & clean & bright with a subtle contrasting astringency at the end. The hojicha was similar with a delicate chocolatey earthiness. I would visit again anytime I find myself in the neighbourhood. Bravo.
Had the Tomago Sando which was really good & also tried the hojicha latte & yuzu lemonade. The lemonade was sour & not too sweet in the best way. I would recommend all of these items. It is a unique space that is well decorated. When we visited on a Saturday afternoon it was busy & there was a dj playing, so it was pretty loud. It doesn't have the relaxing atmosphere I would usually enjoy at a café.
