Only on bag 2 but so far so good, perhaps too good. These GoBricks are something perfect clutch power, injection mold marks are better than Lego, translucents are well translucent not cloudy, clears are packaged separately to help avoid damage and look to be crystal clear. No smell or oily feel, fit and function seem perfect but the colors seem a shade different than Lego. Numbered bags, nice base plate, instructions are good, haven’t gotten to any possible stickers or printed elements yet and no missing pieces so far. They do have a parts replacement service and online instructions as well. They even have anti-theft and piracy prevention built into their packaging.