Hi Neven , I dont own a set of these , but for the price I have not heard or read a negative on these , I have viewed the moon thru a friends pair and the 3D effect is startling once the brain sorts the twin images .
. heaps better than 1 eye .
Thats why I use , and enjoy my 25x100 Zhumhell's .
.
For the price , and if you can afford a few more twin eyepiece purchese's , go for it .
Brian.