Noisy Mitsubishi MXZ after professional install?

I just had a reputable firm put in a Mitsubishi MXZ-SM48NAMHZ2. But now I am worried I am being had.

If you listen to the video which is in the provided link, it sounds like it has bad ball bearings, or perhaps a fan is misbalanced.  Anyone have a guess on the cause?

Also can also see in the picture that there was minor damage to several areas of the metal evaporator foils.  When combined with the fan noise, I am wondering if I have someone else's returned unit, now repurposed.  Does anyone know how to evaluate if there is history on a unit before install?