Any experience with Sealy's Charter Club "Blissful Bay" specifically ?

A girlfriend has this queen mattress and I recently slept on it for one night. I thought it was extraordinary. She told me she has had it for 4 months and it's the best mattress she's ever owned. She also said the reason she bought it was because her previous mattress she owned for 7 years was also a Sealy Charter Club, and she directed me to her guest bedroom, where that mattress currently resides, and it felt great too. Yet some on this sub claim Sealy is garbage.

This would be quite an expense for me and so I am wondering, would a store such as Macy's really carry Sealy as their flagship brand if the mattress was truly 'garbage' ? Or are these negative reviews the work of enterprising competitors?

Sealy Charter Club Blissful Bay