Hi KingSpore,
The mattress you linked would be good value compared to other similar mattresses but I would want to know the density of the foam layers and it’s likely that they would be in a lower density range than the guidelines I would suggest for a memory foam mattress (see post #4 here). I would choose a mattress with memory foam that was 4 lbs or higher unless you have no other options or unless durability isn’t as important a consideration.
Phoenix