It seems to depend on which particular box you open. For example there are plenty of people who are delighted with their H9 Edge but mine sucks and was extremely poorly put together. Nothing fit.
Same for GP products and others.
However it seems to me that even after spending months on a kit there is always something thats not quite right or you wish you hadnt done.
Mass production and low prices have some drawbacks and for those of you that think it shouldnt be like that..get real.
My Truck cost a lot more than any ARF/kit and is riddled with defects and design flaws yet it got excelent reviews.
Treat all with a pinch of salt.