Pros: -Good resolution, seems accurate
-Decently built
-Transparent cover protects the measuring plate.
-Takes common batteries (2xAAA)
-Comes with a nicely padded case, and nice pair of tweezers
-Great value; way cheaper than buying something similar in a store

Cons: Weighing plate is pretty small- could be an issue depending what you plan on weighing with it. Works fine for my purposes.
Manual is badly translated english, but the operation is simple enough that the average idiot like me is still able to figure it out.

Other Thoughts:

Bottomline: Small, accurate scale, good value.

Pros: When I first put this to use, I was really impressed. Put batteries in. It immediately auto zeroes. Weigh your stuff. Tough little unit. The weighing platform is about as big as a nickle. It would be difficult to damage because it is protected by the cover and a raised lip surrounding the platform. Readout stabilises quickly (make sure there is no wind and don't breathe on it). It has lots of different conversions scale- grams, oz, ozt, dwt, ct and grains. Quite a useful tool. Don't know how I could live without it.

Cons: Small, small, small. It is the size of my wallet. Not that it needs to be bigger but I might lose it in my tool box. I will keep it stored in the original box just in case. Probably don't ever want to drop this thing. Putting the 10g weight into it's holder gets kinda tiresome.

Other Thoughts: My main use for this is 3D helicopter part matching. The tweezers are very useful when weighing .3mm * 2.5mm screws and rear tail blades. Totally stoked to have found this scale because when you have ultra high head speed just a couple grains will blurr gyro output. Using the 10g weight, I am able to weigh 10 inch rotor blades by balancing them on it. Sure is nice to be flying smooth again.

Bottomline: Have fun. I sure am enjoying this simple and effective tool.

Pros: *Great accuracy (in fact it is +-2/3mg, but still very accurate
*Price - other scales of this accuracy cost even 10-50x more (well, often certified, but there often aren't any other)

Cons: *Takes long to get used to weighing on it - measure may sometimes be even +7mgs, but it can be checked
*Quality is quite poor, I recommend extreme carefulness when using it, may be easy to damage.

Other Thoughts: I worked out my own method of weighing - place a small coin on the button, then tare it, place that small dish and weigh what you need with 2,502g added. This allows removing dish to check if measure returned to 0,000 (wait about 5sec) or rescale whole scale

Bottomline: Great one for this price

Pros: This is, unquestionably, the cheapest milligram (0.001g) scale I have ever seen, used, or owned. In terms of value for the money, it is excellent.
It comes packaged with a small load tray, calibration weight, and tweezers. The display is backlit and automatically lights and dims when the weight value on the scale changes. The plastic cover is hinged and therefore cannot be lost. The scale also takes regular AAA batteries instead of stupid fiddly watch batteries, and therefore lasts a very long time and is inexpensive to feed.
The lid of the scale is domed high enough to allow storage of the load tray upside down inside it. There is also a foam-lined storage compartment for the calibration weight, which is a nice touch.

Cons: While the resolution on this scale is 0.001g, its true accuracy seems to be about +/- 0.002g. When repeatedly weighing the calibration weight the reported value of the same weight can change as much as 0.002g either way between measures in my testing.
I am unsure of the accuracy of the calibration weight: I have a mechanically perfectly accurate triple beam balance to test against but it is accurate only to 0.01g, therefore not useful for testing the accuracy of the 10g calibration weight.
The manual is quite confusing, especially on the topic of calibrating the scale; It seems to apply to a revision of this scale slightly older than this one which has mildly different operating methods.
For a digital scale, it does take a rather long time for the reading to settle down. The scale will often report an indicated weight as "locked" when it is not, and will change further in a second or two. You spend less time waiting than with a mechanical beam balance, but more than with less accurate digital scales.

Other Thoughts: The load cell on this scale is very small. In the product pictures, it is the dime-sized round metal circle in the middle of the scale. Unlike larger, less accurate pocket scales that can use the entire top surface for weighing objects, what you weigh has to fit on the small load cell or the included load tray on top of it. Because of the precision nature of this scale and its maximum load rating of 20g this is not a huge issue as you can't weigh most things that are physically too big anyway.
For accurate reading it is best to isolate the scale from vibration an air movement. If you're bored, you can notice that just breathing on the empty load cell is enough to make the readout jump by a few hundredths of a gram... The scale is THAT sensitive! When weighing small objects, you can close the lid on top of the scale to rule out any air movement while you wait for the reading to settle down.

Bottomline: For those of us who have a need for (mostly) accurately weighing very small objects this scale is a value that cannot be beat. Scientific grade 0.001g scales routinely cost upwards of 500-1000 dollars, which is a lot to pay for a potential accuracy increase of only 0.001g (vs the +/- 0.002g of this scale) that is unnecessary for most users.
I use this scale for weighing and sorting projectiles (bullets, pellets, and airsoft BB's) for maximum consistency and accuracy, and it work well enough for that purpose.