Well do not try buying this phone if you do not do the basics it was made for the basic user. You will like it better once you root it. I like the fact that most people do not have it like these blackberry and Nokia phones. Overall its low end.
Galaxy Chat was the first smartphone i ever had and back then i was dreaming of the smartphone with technical keyboard. Typing with this phone is really good and easy, but the display sucks and the single core, 850 MHz is too slow for advanced user so i'd recommend this phone for a kid or older person not for someone who's looking for great smartphone. 2mpx camera is also so "last year".
Not a bad little phone.. out of need i had to get this phone and i have not been sorry. the very first chance i get it will be replaced but will always be handy as a spare due to the Android and Samsung name.
Chat and heavy text user definitely go for Android smart phone with ICS 4.0.1. All departments of this chat constructed very well except multimedia department, So multimedia and camera was not a big issue for this chat because they full-fill daily requirements. Overall this chat is decent performer for daily usage basis. I give 8/10 points..
I'm using this phone for past 3 months and believe me if your budget ~10,000 INR and you love to send sms/emails/facebook updates etc. you should go for it. There is nothing can be better in this price range and with this you'll get Android 4.0.1 (Ice cream sandwich). No other manufacturer providing you ICS in this price tag.
From me 9/10