I love the size of this phone and the slide feature. The display is amazingly great, the color is vivid and very detailed. The camera is a 2 Megapixel camera which takes great picture during the day but poor at night. The menu is very user friendly and intuitive but the keypad is a bit slippery. The phone is slim and fit nicely in my jeans or pocket easily. The Mp3 player is acceptable. The reception in my area is mediocre using Samsung and Sony Ericsson, but increase significantly using Motorola with all the phones have in-built antennas. The battery life is excellent lasting almost a week for me. Memory is expandable up to 2 gig which is a lot of space for pictures and songs. I love all the features and would definitely pick this over the w800i.