Here is your refined, polite, clear, and grammatically corrected version:
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The room was recently renovated, nicely decorated, and very clean. It was also conveniently close to the Skyline Trail, which was one of the main reasons we chose this property. The room itself was small, but this was expected as the square footage was clearly advertised.
My only concern was with the sofa bed. It made a screeching noise whenever my son moved, which made it a bit difficult for him to sleep comfortably. It seems that the metal frame of the bed might be quite old or possibly loose.