I've already recommended this cube now 3 friends and even bought one, because it is simply one of the best speed cubes for the price, I know. At the rate you can not complain, even without Silikonspray not. The Corner Cutting could be better, however, is sufficient as long as you do not want to come under the 20 seconds. The stones fall out very rarely, unless you put it on top. What is not at all like me just that the stickers do not keep very long. I got my cubes only been about 2 months and the sticker can come up to the edge already. Perhaps this is also me !? Anyway, I got me then the same spare Sticker bought, because I already knew the cube of friends that cost only a few cents. In short: Speed 10/10 Cornercuttung 8/10 Pops 9/10 Durability 6/10 Overall impression 9/10 because the price is very acceptable!