Things I liked: The case seems very durable and I also got a plano case from Pyramyd for my Ruger 10/22 and this case seems more protective and durable. Seems a perfect fit for my Whisper.
Things I would have changed: The pockets are pretty much useless for anything other than flat items as they don't allow anything thick to be put in them without horribly stretching the rubbery pocket outside. So I would recommend that Gamo redesign the pockets.
What others should know: The back includes a strap that you can't see in the picture and that is pretty nice.