The idea was amazing. The product seams to have a really good quality. However, the "soft" side is the hardest thing I ever slept on, leave alone the firmer side. The concept of being able to chose your side and support and have a different selection from your partner is great, and well executed, it's just deceiving that the soft side was so far away from soft. I would recommend to people that need a firm to extra firm mattress.
I am 5'3, 60 kg, and woke up every night with back pain.
My partner is 6', 80 kg, slept like an angel.