IMO, to each their own.
giesemann really emphasizes alot of their design.
If you go over to RC to view some of their threads,they'd do modifications to these nano tank sets,so that it can accommodate the kind of livestock that they are keeping.PC or T5,i guess it depends very much on the corals that you are keeping.
just my two cents,cause i used to believe that money > well-being of livestocks.