Access Point for Wireless Internet for your smart class

I have two access points for 1 to 1 model for thirty students. One access point accommodates 20 users. It means in my classroom 40 students can use wireless internet.
However, I've found new access point. I've never used this one, but check it out for yourself.

http://socratechseminars.wordpress.com/2011/01/07/beef-up-your-wireless-infrastructure/