It does all of what it claims, I'd say.
I've used both the D-Link and Linksys gateways. They're both pretty feature-rich; although I'd give the nod to D-Link for general hardware reliability. Plus they have a telnet interface. It's fine for the home user.
A couple of alternate droolings:
1) If you ever want a more robust box for yourself, I'd recommend the Netopia R9100--I have one at home serving my websites (and allowing me to play CS :). Eight ports, *great* customizable firewalling. Not non-techie-friendly though.
2) If you are one of the unlucky ones who upgraded your DSL from 1 to 6 megs, only to find out you're still getting about a meg, Nexland makes a 2-WAN-port router, so you can effectively bind 2 incoming lines (more if you chain them, like I have). You can manually specify the binding ratios; so, for example, I have 3 DSL lines: two are bound together on one router, then that inbound signal is bound with a 3rd line. The 3rd line I have set to 1% usage--so it stays open for external connections, while the other two DSL lines are load-balanced 50/50 for outbound traffic. Pretty neat.
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A stupid despot may constrain his slaves with iron chains; but a true politician binds them even more strongly by the chain of their own ideas;...despair and time eat away the bonds of iron and steel, but they are powerless against the habitual union of ideas, they can only tighten it still more; and on the soft fibres of the brain is founded the unshakable base of the soundest of Empires."
Jacques Servan, 1767
