I purchased this phone about six months ago, and my experience with it has been overwhelmingly positive. The phone itself is tiny, especially compared to competitors like the Nokia 3600 series. Yet despite its size, it manages to offer just as many features as the Nokia, or for that matter just about any other phone on the market. Keep in mind that many of the T610's competitors (e.g. the Nokia 6600) were recently released. Despite being much older the Sony Ericsson outdoes it in many ways. (Note that the T630/T637 has been released, but it is almost exactly the same phone with a different look. My advice is to save a little money and go for the older model, which has a better keypad.)First of all, not many phones currently on the market offer Bluetooth, other than the T610/616, the aforementioned Nokias, and the Siemens S55/56 (which doesn't even have an integrated camera). The Sony Ericsson offers just about every feature you could want in a phone. However, it lacks a speakerphone, something that should be included in all phones, high-end or not. It lacks the Symbian OS of the Nokias, but at least you won't have to worry about viruses for the forseeable future (unlike the Nokias). Besides, the menu interface is top-notch, better than the Motorolas, Samsungs, LGs, and Nokias I've used before.Other features in which this phone needs some catching up are:1. The 65 thousand color display is very nice, but it is unreadable in direct sunlight. Some high-end phones have 256 thousand color displays now.2. The black portion of the phone is susceptible to smudges, the silver portion is susceptible to scratches.3. The joystick, while still a revelation to fans of cell phone games (the included games are excellent, by the way), responds to horizontal and vertical movement (not diagonal). This lessens the usability of the joystick- you can't jump from one place to another in Deep Abyss with the joystick, for example.4. I have no idea what the number "08" is for, but even when the phone is locked it is too easy to accidentally dial this number in your pocket- if something presses against the zero key, the eight key right above it, and then pushes in the joystick, the phone will make an emergency call regardless of whether or not the keypad lock is activated.5. 2 MB of storage space is simply not enough for all the pictures/ringtones/recorded voice memos you will have in this phone. The Nokias have expansion slots. It would be great to go from 2 MB to 64 MB just by putting in a Memory Stick Duo (SE will be including the slot in future high-end models).6. The camera could use some work in future versions of this phone. There are already 1 megapixel camera phones on the market. Again, this is not a fault of Sony Ericsson; it was revolutionary to find a camera in an open-faced phone as small as the T610 when it was released.And that's all, despite all these relatively minor qualms I still think this is one of the best phones on the market, especially at this price. The fact is a phone like this, aged as it is, can still compete with those $300 phones you see. There are some pretty exciting flip phones out there, but if you're not a fan of those and you don't want to spend a lot (actually, with this phone they're actually giving you money to buy it) look no further.