I've used their 7x57 and .375" H&H with good results, the bullets are never going to compare to Trophy bonded or Noser but what are people expecting at that price point? If you are going after dangerous game why would you use low cost ammunition with standard lead core, copper jacket.
Privi's origins are in military ammunition, they make a great range that duplicates a lot of the original military loadings but have expanded that range significantly in the sporting field, some rifles don't group well with it, others do. A friends .222" would shoot dinner plate groups but my 7mm is very satisfactory using it.
For the cost of a box of 20 it's worth a try even in .375" H&H £47 vs £81 for a box of Federal or £95 for Hornady.