The DIR-625 is one step up from D-Link's DIR-615 draft 802.11n entry-level router. Read the review.
The DIR-625 looks very much like its less-expensive sibling, the DIR-615. The plastic case is silver-gray instead of black. The other key differences are that the 625 supports Ubicom's StreamEngine auto-QoS technology for automatic management of uplink bandwidth. And the latest 3.05 firmware adds support for D-Link's "SecureSpot" subscription-based managed security service.