I agree with most of the other reviewers here - the Samsung vi660 is a great little phone. I finally upgraded from my beloved but old Samsung SCH-8500, and so far I'm pretty happy with its replacement. Some features I like that haven't really been mentioned on the site to date:1) When you're charging up the battery, at 90% charge the outside LED light turns from red to green. This may not seem like a big deal, but overcharging the battery over time will eventually ruin its capacity to hold a charge. It makes it easier to see when to unplug it, and hopefully save on battery wear.2) You can customize the function of the 4 navigation buttons just above the keypad, so with one keystroke you can display the phone book, calendar, calculator (i love this feature!), or even turn on voice dialing.3) The voice dialing on the phone is nifty. You don't have to 'train' it to recognize your voice. Once voice dialing is activated, you can just tell it to dial by name, by number, or by digit and speak your commands into the phone. If you can never remember your cell number, say &quot;my phone number&quot; and the phone will read it back to you.4) The phone has ringer volume settings that include vibrate, but it also includes a great vibrate&amp;high volume combination, so whether you're wearing it in a noisy room or its laying on a table in a quiet one, you'll know its ringing.5) When entering a phone number, the display turns white and shows extra-large digits until the whole phone number is entered, making it easier to see if you've misdialed.5)When entering to-do items into calendar, memo pad, or task list, the phone automatically starts off in T9 mode (the word-recognition software that lets you enter words by only hitting each button one time).Just like my old 8500, the Vi660 has a lot of ergonomic little features that make this phone a pleasure to use. It packs a powerhouse of advanced features as well, including the ability to lock the phone and hide the display of certain phone numbers for security. My only big complaint about this phone is that Sprint gives you a user's manual that is 10% user's manual and 90% about touting its PCS Vision services. If you REALLY want to know how to use every little feature, youre going to have to download the PDF file of the manual off their website. All in all, though, I'd say it was a great little phone.