Serta iSeries 2.0 Hybrid 2000 12.5 Firm Mattress

Hey there I'm considering getting "Serta iSeries 2.0 Hybrid 2000 12.5 Firm" Mattress apparently the 2.0 version is recent and fixes 1.0 issues.

Any thoughts about this mattress?

The alternative would be : - 2.3k: Beautyrest PressureSmart™ 2.0 Hybrid Firm 13" Mattress - 4k: Tempur-Pedic TEMPUR-ProAdapt® 12" Firm Mattress