I bought a Nokia 100 from Cnet for about 2 months ago. The reason for the purchase was the long battery life, ease of use and ruggedness. I have had several simpler handsets from Nokia in the past and been quite pleased with the ease of use, battery life, sound quality, reception and quality.
Nokia 100 was a big disappointment for me. A real crappy phone compared to eg Nokia 1110 and Nokia 1202 that I bought and used in tropical Africa for several years without problems.
Ease of use:
Worse than the Nokia 1110 and Nokia 1202
Can not read the display in sleep mode
Fresh Threads not as clear in the sunlight as the monochrome.
The menus require more button to get right.
Stand by 5-7 days, no better than the Nokia 1110 and Nokia 1202
Hairy is clearly worse than the Nokia 1110 and slightly worse than the Nokia 1202
The recipient understands that it echoes if one has the highest volume to hear.
The sound lags and the receiver can not hear me as soon as I leave the window in my office.
Have never had such problems with my Nokia 1110 in Sweden.
Build quality and keypad feels good but what's the point when the way is a crappy phone.