I have been using this phone sine last couple of years and till date I have no issues and phone is working very well and happy with the it.
The battery backup is very good and never faced any issue so far, the slide is very smooth and easy to use. Few times I found the keys are bit small to use hence found bit inconvenience while keying in messages and dialing.
Very reliable and strong, fell few times still working very well. While playing music I found it could be bit louder like Nokia phones. Most important feature is easy to use.