Talley Lambert and Jennifer Waters published a very nice review on the technical challenges in super-resolution microscopy in the Journal of Cell Biology. And we can just agree: "SR microscopes should be routinely characterized and optimized using standard test samples to ensure they are performing as expected."
Lambert, T. J. & Waters, J. C. Navigating challenges in the application of superresolution microscopy. J Cell Biol jcb.201610011 (2016). doi:10.1083/jcb.201610011