Have used antec psu since my first one in '03, the ANTEC SL350S only reason I've ever changed an old antec psu for new has been as Tim Allen would say "More Power"... If the cases are anything like the power supplies they are great.
From the information provided; It seems to have been well designed; from airflow ,to the increased interior space. the quick release / modular drivebays and thumbscrews for addin cards are a nice ease of use extra.
1. I'd Frame it and place above my monitor to remind me to save $$ to build a brand new system around it. then when that's done, give my old system to my mother so she can check her e-mail at blinding speeds.