Bests & Worsts Reviews from Amazon

I had high hopes for this product after installing 4 x 3Tb drives in Raid 5 and starting to transfer various files and backups that I kept on 4-5 external USB drives and Time machine backups. After just a week of use and filling approx 3 TB of data I noticed the web admin interface was very unresponsive . After repeated attempts to login and load I realized that a wdphotodbmerger process was consuming 70-80% of cpu trying to generate thumbnails for images across all my time machine backups and various sources. I attempted to disable Media player support to no avail. file transfer speeds had crawled to a stall (<1mb/sec). I left the process run for 3 days with no luck and had to create an ssh account to login and remove execute permissions on these non essential processes to recover access to my files. This is an operation I have had to do twice more - I don't know why my changes got overwritten. Another issue was trying to use the Web and FTP file transfer processes and automatic backups. A major issue was when I popped one of the drives out to test the RAID rebuild before I would start removing files from my sources. The Auto rebuild starting right away rebuilding the RAID which took 22 days to complete You read that right - this was for approx 3Tb of data. I would have expected 8-12 hours at most. 22 days is a very long window during which any other failure would have meant the loss of all data. this was not with a fresh, blank drive but from one of the 4 live drives. I have contacted WD support about these, asking for some explicit solutions (firmware update that reduces the process priority or thumbnails, etc...) and got told that the product works as advertised. I cannot return it as I am past the 30 days. In the 2 months that I have owned it, I have run into many more performance issues. The web Ui doesn't load well under Chrome, is sluggish, and transfer speeds are disappointing even using the dual ethernet ports on a gigabit hub with all computers wired in. I am eagerly awaiting Seagate's solution to this market - prosumer - Soho, and in the mean time will recommend Synology's products which I've used before. Too bad because from the outside, the form factor and price are great, the unit seems robust and sturdy, and setup+ the web interface were a breeze. But this unit fails in its number one purpose: making me sleep better knowing that my data is safe, accessible, and replicated in Raid 5 without any concerns. UPDATE: I tried posting this feedback through a survey link I received when registering the product: After completing the survey and hitting submit, I received the following notice which prevents me from posting my information to WD. " An internal server error occurred during your visit. We apologize for the inconvenience. If you would like to report the error to us, please report the following error: Web Error WE21753826. "