They do have mentioned about the ratings at their site. There are multiple sites who given good rating to this project. Rating might improve further depending on the project work.
mitoshi seems like a great project but i really don't judge a project by the rating it gets from rating platforms most of the time you can't be sure if they are really legit or even trust-worthy
I don't know what parameters they use for rating. I mean most of these project are startup project. I mean suppose Team might not have good experience but are they giving rating based on their knowledge on the field?