Didn't expect much for the price and it probably is a case of you get what you pay for. I'm hoping it'll last a couple of years but doubt it will last the 8 years recommended to have mattress for.
The mattress is quite soft considering the firmness rating. This might be a good thing yet but I've only had it 2 nights. 
For the price I'm happy but if you can afford an extra couple of hundred then a different make may be better.