Problem is, many of us don't have the space for a power strip. At least the laptop style power cord you get with the Strymon PSU's is meant to be moved around.Update: Been going strong with this method. I put a dot of super glue as well so they don't get moved.
Regarding issues I see with the power supply, I plug everything on my board into a power strip and mount it underneath. That way I'm not constantly fumbling around with the wall wart. It is flimsy and cheap and I don't trust that to last long at all if it was loose.
It took 2 months to get a replacement IsoBrick from Dunlop after mine crapped out. While waiting I bought a Truetone CS12. Better form factor, hefty power cable, and zero problems.