I purchased this clock for my Mom who is 87 years old.  She mixes up the days...but no more.  She tells me everyday just how much she loves this clock, and so do I.  She no longer has to ask me what day it is, or the date and time.  It's fabulous!

Very easy to read and does not hurt the eyes.
It is not battery operated (which would have been an extra plus in case of a blackout).