I've set up 4 of them in the past 2 weeks.  The first one took about 30 minutes, since then I can get a new one up in less than 5 minutes.

They aren't very hard.

All I do is change the timezone, and update the ip address.  The machine reboots and I change the pool configuration and I'm done.

I think most people here have said that you should not use the wifi connection unless you have an external antenna. 

http://i.imgur.com/mOrh1MS.png