Pros: Works as advertised. Clones drives and connects to PC via USB 3.0.

Cons: Drives to not sit snugly in slots, there is wiggle room. Should only be used in a secure stable location where it will not be bumped or jostled. I have not used the eSATA connector to connect to a PC.

Overall Review: I have used this to clone 5 different drives both 3.5" and 2.5" sizes. I have cloned identical sized drives and to a larger drive. When cloning to a larger drive it is required to expand the partition size through the OS tools after cloning to utilize the entire space of the new drive. Three of the drives were reported as "Failing" by the OS/PC that they were running in. In two of the cases the cloning process took a long time, but when allowed to run successfully cloned the entire contents of the failing drive. In one case it took about 22 hours to clone a 640Gb drive to a 1Tb drive, but it did complete successfully. I have not tried to clone from or to a SSD. I have cloned from 7200 RPM to a 5400 RPM drive and from 5400 to 7200. This little device has saved me much time that would have been spent reinstalling OS, software, etc. and then trying to manually recover the data off the failing hard drives.

Pros: None so far, havent been able to test it. I will update IF i can get it working.

Cons: Like the other reviewer I was sent with Eropean power adaptor (not a US plug format) to a US address. When shipping to a United States address, include a power cord that can actually be used in the contry of purchase!

Overall Review: Stay away from this product if you live in North America unless you have or are prepared to buy a European to US adaptor plug. I will update/post a new review IF i can get it working with US power.