The cooling capacity you certainly can not compare with a "big" refrigerator, but for this size he brings with enough power to make a bottle of Coke cold.
I can not judge agree - "degrees below ambient temperature x", because I do not nachmesse how far the information as.
I can only say that Coke is cold enough.
In ECO - mode the fan is barely audible at MAX are more likely.
However, I can see the rest here do not understand the call that loud.
There are certainly plenty of other things, such as laptop coolers that are much louder.