Completing an item on the list isnt easy. You must swipe across, which takes some coordination when pushing around a shopping cart. I also use ShopShop, which is free, and that app uses a simple tap to complete items, so I keep tapping in Listick, and it opens the item editor.
Items are also large, so limited in how many items are visible onscreen. It must be even worse on iPhone 4/4S.
Havent found much use for the price feature. Looks nice for expense-tracking, but all prices are in store circulars and coupons, so must enter a lot of prices while shopping, which is not practical. I guess you could do it after the fact using the store receipt.
Anyway, Id probably like this more if I hadnt discovered ShopShop first.
funtongue about Grocery Shopping List - Listick