Samsung 600 has very nice sleek looks and fits in the palm very nicely. You will like the looks, trust me. One more thing which is pretty unique is the voice dialling. On paper the feature is good - but it is not sensitive enough. It doesnt work well in a noisy place.
The vibrator mode is one more feature which I like and I feel is an essential. The vibrator mode is pretty effective here. But you cant set the SMS to the vibrator mode, I dunno why. The set comes with a free earpiece, one more good thing about the package.
The reception is not the best, specially inside elevators and office buildings. The battery life and talk time is pretty good. The LCD panel scratches easily. The champagne gold casing fades and wears out very fast.
The address book and text message take a long time to start up. For almost the same price range, I will suggest you go for the Nokia 3210 (which is a bit heavier), which has a lot of features and is a Nokia!