Problem sets are usually a key part. I should highlight whether the problems are varied, from simple to complex, and if there are enough of them. Also, if the explanations are clear. Maybe some users find the problem solutions a bit brief, so that could be a point to mention.
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Problem sets are usually a key part. I should highlight whether the problems are varied, from simple to complex, and if there are enough of them. Also, if the explanations are clear. Maybe some users find the problem solutions a bit brief, so that could be a point to mention.
