I bought one of these for a friend/customer of mine, to make his life easier printing from his new wireless laptop.
He has a standard wireless router that works just fine. He has an HP printer that has worked just fine for ages via USB cable with his desktop PC, but with the addition of his new laptop to his house, a wireless solution that could be shared by the desktop PC and the new laptop was an obvious choice.
I even phoned HP to check that the HP printer and the HP wireless print server would work together with Windows XP Pro. They said it would be fine.
Unfortunately this is not true and so far this "solution" has cost me much support time because the wretched device does not work properly. The supposedly attached printer consistently disappears and will not reconnect. Only a full re-instal will repair it - but only temporarily.
HP tech support have been their usual inept selves and finally concluded that there is a known problem with XP SP 3 and suggested downgrading to SP 2. Excuse me?
I shall never buy HP again.