This mattress is amazing! Slept on it  for just over 6 months now..  it gives us so much support.  When we first slept on it it was like waking up in a different world.
I’d say it’s firm, maybe medium firm. Good solid structure, it’s a gamble to buy a mattress in line especially if, like me you’re very tactile. When it arrived in a box I was anxious, even more so when we unpacked it - it looked like a very thin poor quality mistake. Do not be fooled ! It’s a sumptuous dep th quality mattress.