I purchased my Samsung Corby S3650 a few years ago.I used it for two years.It was pretty much a pathetic buy.The touch screen was horrible.Using the os was an irritating experience.As it was not an android based phone, a very little app support was present.
Probably I should have taken Nokia 5233 at that time as it had a better app support.The camera was also ordinary and not as per the samsung standards.