Pros: Good entertainment value, useful for seeing relative temperature differences. Fairly accurate in the 50-80 degree F range.

Cons: Accuracy is bad enough to relegate it to "toy" status, which is not surprising I suppose when you look at the cost. When using it to determine outdoor temperatures, it's consistently off the mark, ie, reads 17 degrees when actual temperature is 29. This is in comparison to a known accurate sensor. A couple of degrees difference is to be expected, but this large a difference is not acceptable. Thought maybe it was a defective unit, so sent it back at my own expense and the replacement was every bit as inaccurate.

Pros: Good read speeds

Cons: Terrible write speed. Wasteful packaging.

Overall Review: First the good: read speeds are quite good, with Diskmark posting 152Mbps for sequential. Unfortunately, the write speed is flat out unacceptable, posting at 56Mbps compared to my WD 5Tb portable drive that posts 114Mbps. I'm a video professional and generate large files (10+Gb) on my cameras, and getting them into my system in a timely manner is crucial to my work flow. When I copied files onto this Seagate drive, I was getting a real world rate closer to 20Mbps, which is less than half the read speed of the SDHC cards coming out of my cameras. My cards were putting out data more than twice as fast as the hard drive could take it! Plus, the packaging was a HUGE cardboard backing (marked "C**tco" BTW) with a small plastic bubble with the drive and cable mounted on it. Needed a very large box to ship it, and now to return it. Wasteful. In the words of the Food Network, "For these reasons we had to chop you." Drive returned.

Pros: Price, speed.

Cons: Loss of 3.0 connectivity; no power indicator light (separate from data traffic light.)

Overall Review: I have purchased three of these over the last 8 months, and two have lost all USB 3.0 connectivity after about 4 months of average use. Windows 7 gives me a "boink" to let me know they're connected, but the drives are not visible or accessible when plugged into a 3.0 port.They still work as USB 2.0 docks, but that's not what I bought them for. Just waiting now to see how much longer the third one lasts.