HELP!! ROI's and House Hacking

[Michelle Elaine Fontan]

Hi, I am still a newbie and learning how to calculate numbers, If I was interested in a duplex to house hack, would a 1.7% Cash on Cash ROI be a good deal?

I'm thinking maybe since I would no longer be paying rent and still working so I would not be losing any money, also my tenant would be paying my mortgage.... but this is why I am reaching out to you. I'm not sure I am analyzing the numbers correctly.