This is one of the best phones I've seen come around in a while. The z550a is a great value because it sports many of the same features as the more expensive Sony Walkman phones, and even has a better screen. Also, it's construction is mostly metal so it is a very sturdy phone. It trims off everything most people could care less about most SE phones, and puts it in a rugged body and inexpensive to boot. PROS:Great DesignGreat PriceQuad-Band GSMEXCELLENT receptionFM RadioMP3 PlayerNice Screen for the Price RangeLong Battery LifeNo antennaVery strong constructionExpandable MemoryCONS:Buttons are flush, and not big at allAwful Japanese Pop RingtonesAll in all, standard SE trying-to-reinvent-the-wheel buttons aside, this phone is great.