Bought one and drove for a year. At the bottom of the hole, the wheels of the stage with a wild collapse. Cut through the side walls. The top is quite good. Decided to take a new one. Bought. The bottom part is 1mm wall thickness, the plastic is very brittle. The old one was thicker and softer. As a result, it simply burst and fell apart into tatters. Weight drove about 6 kg. Conclusion - the current quality is no good. Don't take it for sure. see photo
I've added some photos to give readers a better sense of what to expect.