I just purchased a DIR-636L and successfully linked the device with a mydlink account. I tested remote access via mydlink on a remote PC browser and iPhone. mydlink shows real-time upload/download throughput which is great as you can monitor in/out network activity; create/modify guest accounts (for the router LAN; and modify the router FW settings.
Great job D-Link!
You can post questions and findings for mydlink.com and the various mobile apps on this section of the forum:
mydlink Cloud