Things I liked:Does what it purports to do. With your reticle centered, able to center up your impact. With the gimbel setup, no strain on your scope tube. Reasonably priced. It works!
Things I would have changed:In my opinion, ring height too high for a 40 mm objective on RWS 34. Windage set screws are inconveniently placed. Need patience for set up time. Instructions are horrendous.
What others should know:It works as claimed. Holds zero better than I thought. Ingenious design with the gimbels and all. solid. I would buy again.
Things I liked:Very well built/machined. Solved the problem I had with the scope vibrating off the end of the gun due to recoil.
Things I would have changed:Upgrade the installation instructions adding more pictorial details.
What others should know:The scope mounting rings which came with my Gamo 890 do not hold the scope on the gun. So if you are pricing a new gun like this one factor in the cost of upgrading.