PowerBar has been rated in the lower price range rather than a "very good" product in one of the tests that I have read (at Stiftung Warentest, I think). It helps me personally to control my constant feeling of hunger. By refill pouch has also not always this huge, space-consuming containers; so one needs to buy only once and then fill again with the refill bags. By saving a subscription you also get a very fair price!
