Things I liked: Easy to mount, nice fit, does what it's designed to do. I tried mounting a scope on this rifle years ago and gave up getting it sighted in. Then the rear sight spring came out and I was just shooting it using guestimation which worked but wasn't consistent. This mount and a scope put it right in the black every time. This rifle is now usable.
Things I would have changed: nothing
What others should know: Easy solution to mounting a scope to a Diana RWS 34.
Things I liked: I wasn't sure if this would make any difference on my old Diana 34 .177. Once I got it installed the difference was noticeable, the rifle shot a little more stable and sounded smoother. Some modifications had to be made to make this fit my rifle so I had someone with a drill press drill it out a little so that it'd slip over the end of the barrel. Well in the process, his Dad who works as a machinist came by and when I got the gun back the end of the barrel had been ground a bit to make it fit. While I wasn't excited about the way he did the job I have to admit he did a good job and said his concern was about the thing being "aligned". anyway, now that it's done I don't intend on taking it off anyway .
Things I would have changed: Nothing, it wasn't an out of the box fit for my rifle but I bought it knowing I might have to put some effort into installing it.
What others should know: I won't say this made the gun "quieter" however the improvement does reduce effect that causes some noise and makes the rifle a bit more stable. I haven't tried covering the holes as some stated but about all I hear now is the spring.
Things I liked: Makes finding and loading (some) pellets a lot easier.
Things I would have changed: make a .22 version
What others should know: handy little gadget to have when walking around in the woods.