I bought the buck growl. I think I bought it to late to really get the right responce out of it. Some people said they have had good luck with it. From what I understand the primos buck roar may sound a little better than the Growl. I think there are two things that are key to this product. Catching Bucks in just the right mood (crusing for/chasing does) and a good buck to doe ratio.But if you have a good number of (frustated)bucks in your area it may be worth a try?

Good Luck!