The Rex FI22-11E has a better climate class than most medium total net capacity fridge freezers that are a similar age to it. This Rex fridge has a T climate class, whereas most similar spec fridge freezers that have been around for a comparable time to it have a SN climate class. This Rex fridge freezer also have a ST and N climate class.
This fridge's climate class (T) is in fact the best climate class amongst all fridge freezers of this age and type.
Amongst similar types of fridge the worst climate class is ST.