I bought this phone 2 weeks ago, after trading in a Ericsson T610 because it was not getting a signal, and now I want the Sony back. It's got a very nice interface, nice graphics, all the makings of a good phone, but it frequently dropped calls and has many software defects. I took it in for a replacement, and my second one did the same thing, and I happily have the money back in my bank account now.ProsNice displayUser-friendly interfaceAble to set any picture as background- an improvement over the T720.comfortable feelalot of room for phone numbers, you will never run out of roomCONSMy display randomly appeared upside-downReminders never went off on time, sometimes randomly in the middle of the nightVery disappointing reception- many of my co-workers have T-mobile with &quot;off-brand&quot; phones (other than Nokia, Motorola, Samsung, and Ericsson) and get much better signal throughout the building.ringtone composer did not work- (I copied the codes exactly from my old T720, and they worked until the tune randomly jumped octaves or something crazy like that)Ringtones- I had custom ringtones for most of the people in my phone book, but they never worked... as a matter of fact, alot of people's personal ring tones changed to someone else.Dropped alot of calls.Power shut off periodically when battery was fully charged.Hands free headset would not stay in the plug for it, and call would be dropped if it pulled out.key design- it's very hard to type text messages without looking because of the key layoutMost of the pre-programmed polyphonic rings are annoying--- when I used this phone at work, I could hardly find a ring tone that I would not be embarrassed for my students to hear.General things it lacks:With all of its features, this phone still does not have alot of the features that Ericsson has, such as bluetooth, the ability to sync the calendar and phone numbers with outlook, etc.All in all, it has potential, someone either needs to fix the software and features in this phone or fix the bad reception in Ericsson.