Synology's DS418j came close to taking the #1 rank for RAID5 NASes.
Synology's DS1817 provides high capacity and 10 GbE connectivity at a reasonable price.
Updated - Synology's DS1517+ is an attractive choice for a 10GbE capable NAS.
Synology's DS416 and DS416j are both good values in four-bay RAID 5 NASes.
Update - Synology's RT2600ac Router shows the company is serious about pursuing the Wi-Fi router market.
Don't be limited by simple NAS backup options.
Synology's new OS includes betas for email service and virtualization.
Synology's DS216+ delivers better bang for the buck than the more expensive DS716+.
Synology's RT1900ac Router has a lot of nice features, but poor wireless performance.