I thumbed through it at Barnes and Noble and it seemed okay, but pricey.
The hard thing is to stay current, as particularly 802.11G products are becoming dominant very quickly, and there have been a lot of changes and peculiarities to G from all vendors, including Linksys.
A found it a little light on things that can be difficult: VPN support, good on security but light on actual WPA implementation, and out-of-date for most driver and feature changes.
But for the basics of 802.11b it seemed quite good.