Little background information:I live in a medium-size metropolitan area in the deep South where there is no 3G coverage. I bought this phone before Cingular was bought out by AT&T;, so you can see I've had it for six or so months.On to the review:I bought this phone after doing a ton of research. I'm a techie, and I'll spend weeks researching to find the product that meets my price/performance/featureset balance. This phone struck that balance pretty well: Two MP camera, ability to play MP3s and WMAs, plus (from what I'd read) decent call quality.The camera is nice. No flash and the pictures tend to lean towards a green color saturation, but they're very nice for a camera phone and the green hue isn't egregious. This was actually one of the main reasons I bought the phone, and I've not been disappointed in the slightest.The MP3 and WMA capabilities are also very nice. The player comes with a built-in player that does a pretty good job of organizing and playing your music. I'm sure there are some great java applets out there that play music much better, but I don't care that much to look. Regardless, many a time when I was without one of my real MP3 players, I would load up an artist or album on my sync, hit the play button, then close the phone and clean or cook or whatever I had going on. The play quality was decent and the speakerphone reproduced the sound as well as one could expect. I would say the music-playing capability of this phone is close to top-notch.Call quality is much worse than I had read. Many times I can barely understand the other end, and my phone conversations are accented by more "whats?" and "huhs?" than any other phone I've ever owned. The sync seems to do really well when you have a strong signal, but three bars or less and it sounds as if the other end is completely mumbling. I think this is partly because of the phone and partly because of AT&T;'s terrible service. Several other people in my office don't use AT&T;, and they can always tell when someone in the office is using an AT&T; phone because of how often that person has to repeat themselves. I doubt it's lack of 3G because these non-AT&T; coworkers don't have 3G either. It's very frustrating to spend more of your cellphone conversations repeating yourself and asking the other person to speak more slowly and clearly than you spend actually talking, but like I said, I don't know how much of that is the phone and how much is AT&T.;Other problems:About a month into owning this phone, I would completely lose signal while in the middle of the call. The other person could hear me, but I couldn't hear them. The phone would lose all signal and I would have to power-cycle the device to reacquire it. This would happen on almost any call longer than 30 minutes. This began happening maybe a few weeks after Cingular's service was switched over to AT&T; service, so I suspect that may have been the problem. The phone doesn't exhibit this behavior much anymore, though it does occasionally crop up.The problem I have with it now is that it loses data signal about an hour after it's turned on. This sucks for me, as I pay for the unlimited MediNet so that I can surf the web, check email, get directions, or whatever else I need. Again, the only way to fix it is to power-cycle the phone. The phone began exhibiting this behavior roughly a month ago and has not stopped.The menus are entirely too complicated. You have to go through at minimum five menus just to send a text message, even if you use the little shortcut menu. I'm a software developer who's worked on websites and windows applications, so I feel no sympathy for Samsung for not having an easily navigable user interface.Having to hold the volume button for four seconds to have the front LCD come on so you can check the time or for missed messages is absolutely inexcusable. I can only assume that this was done to extend battery life, but it's ridiculous. Who holds down a button for four seconds just to see what time it is?The batter charger uses a proprietary plug. While I absolutely detest this practice, it's been the norm for manufacturer's of USB devices for several years, and I don't think it's going to change. If you're like me, you already have a shoebox full of all the different phone chargers for all of the phones you've owned/still own, and this will be another to add to your collection.In all, this phone is barely above okay. As great as the camera and music-playing capabilities are, if a phone fails in it's main responsibilities of cellular phone calls, then it's not much of a cell phone. It really saddens me to have to replace this phone, as I love it's features and could live with its overly complicated menu structures if the call quality wasn't so terrible. But like I said, if a cell phone doesn't make decent calls, then it's failing in its main area of responsibility.