I bought this watch because of the stylish looks, the reported reliability, and the fact that it was a watch that would never need batteries. There were also other functions advertised that appealed to me. I have owned Casios before and they took extreme wear while still maitaining their function. This watch I have now will not allow me to go more than five days without the solar battery running out - usually at inopportune times where I really need a watch! It has become very unpredictable. Please do not get me wrong, it is a nice watch, I have gotten many favorable comments. But I want a watch I trust to work day-in, day-out and not one I am constantly worried about. I guess for someone who has the time to set the thing out in the sun on a regular basis, it would be a good purchase.