Never thought I would like or even want a Kindle, but I was homebound recovering from yet another surgery :) and decided to go for it. I have had mine for about 1.5 years and absolutely LOVE it!! As far as eyestrain goes, I love the fact that I can increase the font size so that these 55+ eyes don't even need my reading glasses to enjoy a book! Bought my husband one for his 60th birthday and he really enjoys his as well. My friend has a color Nook and loves it.