Excerpt: The Linksys Wireless-G WRT54G provides very respectable throughput at 1 foot and 60 feet in "g"-only mode. Its interface remains much the same as in previous models, and the included setup utility makes the unit very easy to configure and use.
LinkSys WRT54G WireLess-G Broadband Router and WMP54G PCI network card
9 December 2003
Conclusion: The WRT54G is however the cheapest in the present Linksys range so it's no-frills. If you like better control over your firewall (in other words, hardware level) then look higher up the range or elsewhere.
Pros: Cheaper now it’s a bestseller (with card sometimes bundled)
Cons: If you want to go faster, stay wired; no hardware firewall