I live in Miami, and we don't have an H&M (unfortunately) so I rarely get to get my hands of any H&M pieces. When I went to Spain, however, I was dying to buy some high wasited jeans. This was about two years ago, I found a really cute dark wash pair that fit me perfect! I have thick legs, and it fit my perfectly skinny all the way through. Ive washed them several times and they're still super dark. Of course, they're a little uncomfortable when it comes to sitting down, but besides that, I adore them to this day.
I disagree with the other review for H&M jeans... I think they are very reasonable priced and I buy lots of jeans from there (maybe the prices are different in the US? Here in the UK they are less than £20 which is around $35.) I find them very comfortable, however the one drawback is that the skinny jeans have quite narrow legs! I have to buy an 8 rather than a 6 (4 rather than 2 in US sizes) to get them to fit.
Not very reasonably priced considering how I found the quality to be. These jeans are stiff when you first wear them, but by the end of the day they are weirdly baggy. Would not recommend, although they look cute on the shelf.