Very accurate and just the right size... It works on 2 AA batteries and AC. Do not use the supplies batteries. After a few weeks they were drained dead and they leak like crazy. Luckily, when I was turning on the scale, it did not turn on so I checked the battery compartment and discovered it as all full of some kind of brown slimy liquid. I removed the batteries and cleaned it out and all went well. I would suggest you get a pair of quality AA batteries and get rid of the supplied ones. Even after this issue I still recommend this scale. Nice looking, accurate and perfect size. Just get good batteries.

UPDATE: I just discovered that this scale is chewing through batteries very quickly. I don't ship packages very often and noticed that everytime I went to use the scale I would have to put in fresh batteries. Lately I've been shipping more frequently - at least a package every week. Still - every time I use the scale I have to install new batteries. I shipped a package on Tuesday and had to install new batteries and now 2-days later I had to ship another package and the batteries were dead.
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This is a fantastic postal scale. I really like the bright, large, easy-to-read backlit display and this scale is ACCURATE! On the several different occasions that I checked on the accuracy of the scale by comparing this scale's readings with the actual weight as measured at the post office's scale the readings were IDENTICAL. Exactly the same. I checked at two different post offices locally on several different occasions and the readings were exactly the same. In the past I would use a kitchen scale and after awhile I got a good feel for the accuracy of that kitchen scale and I would usually add a couple of ounces to the reading to make sure my packages wouldn't be overweight when dropping them off at the post office. More often than not I would add too much to the reading. Not a huge deal but now with my American Weigh Scales very accurate scale I don't have to fudge the readings a bit. Thanks for providing such a fantastic scale at such an affordable price. I thought I would have to pay at least $75 to get a scale capable of weighing up to 55-lbs at this accuracy. I really like the "hold" button on the side that allows me to lock in the reading when I cannot see the display while weighing large packages.

UPDATE: STOPPED WORKING WELL, am having to return it. stopped zeroing out after weight, and readings were wrong. Back to my 20 year old one.

Ok, it is a vast improvement on my old scale. It stays on when on battery for 2 minutes, my old one would turn off after 30 seconds. When set to grams, or pounds when it turns off it remembers which it was set to. My old one would turn off to quickly, then when turned on it would go back to pounds, so I was always turning it on and changing the scale to grams. I fill SodaStream bottles of CO2 which is done in grams.

This scale goes to 55 lbs, which when weighting small CO2 tanks of 7.5 lbs empty, I can fill it and get 12.5 lbs which is full for a 5 LB tank. In the past I had to use two scales as my old scale only went to 10lbs, and my Taylor scale could not read under 10 lbs.

It is the perfect scale for weighing items to sell on eBay. When having to add the weight to listings to help sellers know the cost of postage makes for a better description of the item. Once the package is ready to go I double check the weight and then purchase the postage through eBay.

It runs on batteries and electric. I turn it off after every use so the batteries will list for a while. Once they are dead, I'll just plug it into an outlet.

The one issue that needs to be improved are the directions and how to use it. Nowhere in the little booklet does it tell what the button on the right side(HOLD) is used for. I found the use by reading reviews here at Amazon. Hold it in if you want it to remember the weight when you take the item off the scale. I find it silly....just read the weight and type in it in or write it down.

It's a nice scale, and would be perfect if it wasn't defective. The problem is the image on the scale, only the bottom half of the numbers show up clearly. I'm going to have to return it.