I bought one of these for my mother. She suffers from Parkinsons Disease, which has left her with limited mobility in her fingers and reduced vision.
My (ie her) requirements from a phone are therefore a clear screen, and distinct, easy-to-use buttons. This phone mostly meets those criteria, although the main menu system is quite poorly designed (why didn't they just copy the old-style Nokia menu system that everyone used for years?).
My only real complaint is that the main menus are activated by a small, hard-to-press button on the side of the phone. Why? It's a poor design decision that defeats the object of this phone.
Overall, this phone gets three out of five from me. A good start but, as they used to say in school, "could do better".