After about 2 months, I can say I am very happy, especially at this price. Therefore, 5 star, for a much higher price, I would have awarded 4 stars.
The mattress is quite hard for me does that, one tick was soft also ok, but what the heck. Who wants to be soft, should not access here, I (or my back) mags like hard.
As for the bad reviews, some people are either oversensitive or there were variations in the quality. I have the first day quite found an odor which was not dramatic but. After about a week this was as good as gone, that is, minimal I can already still perceive a certain scent, but that of the whole room stinks dannach I can not confirm, well I do not have a headache from it.
Conclusion So, who wants to be good and not too soft and not being willing to spend several hundred euros for a mattress, is well advised here!