This was the first mattress that I've ever purchased and I am very satisfied with it!  I was honestly overwhelmed with the amount of options out there, especially because I didn't really know what to look for.  After a while, I just went with this one because it had really good reviews and was pretty inexpensive.  My wife and I have slept great on this mattress and think it's a good balance of being relatively firm and reasonalby soft.  I'd definitely recommend this mattress!