There are lots of things that annoy me. It's so expensive, the boxes are so big compared to the contents, but they're by far the market leader, they do what they do very well and people buy it so, it can't be all bad.
However, the thing that really annoys me is that the massive boxes, far too big for the number of bricks, are the wrong shape for the finished model. Is it really too much to expect the the huge box might be made in the right shape to store the finished project?