Overclockers Club published a review on the Synology DiskStation DS716+ NAS
A quote from the article:
Just as with the bigger brother, the Synology DiskStation DS716+ is an amazing NAS unit, especially for the price. With the exception of the additional bays, it offers the same performance and versatility we come to expect from Synology NAS units. I was quite pleased with the overall performance of both RAID 1 and Synology Hybrid RAID for backup, and if you are just needing raw space and do not care about continuity, then in a RAID 0 setup with two 8TB disks you could have a big 16TB powerhouse for keeping files. I was surprised to see the RAM slot as a SODIMM design and even though it is unsupported, the ability to upgrade the RAM is a huge plus.Synology DiskStation DS716+ NAS Review @ OCC