Renting half house to 2 friends (a couple)

[Mike Texter]

Hi, i just bought a 1350 sq.ft. house 3 Bed, 2 Bath, and 2 friends (who are married) and i just moved in yesterday. We negotiated briefly on rent amount before i caved and said their initial offer of 300 per month plus their share of utilities would be fine. My gut feeling is that i should have asked for more, but they being my friends, I felt like it would make things awkward.

The house is right in the suburbs of Grand Rapids, MI, and close to just about everything. They have 2 dogs, but by far the smallest bedroom in the house, as well as their own bathroom. I am paying about 875 a month for the mortgage plus insurance and taxes. Utilities are yet to be determined, but i'd estimate around 200 a month for those altogether (cable, internet, trash, electricity, water, gas).

I just want to make sure i'm not being taken advantage of. Any tips would be great :) (the consensus among my co-workers is that i'm being shafted.)