Yes, have 2 laptops. One is an ibook with an airport extreme card. The other is a pentium 111 700Mhz with a pcmcia card.
I live in a hotspot that my ISP provides, so there is no need to set up a wireless network. So long as the laptops are in a room with a decent sized window, they pick up the signal. Signal strength can vary from 60 to 80% depending on what room is used. I do not need to share a printer or to share files. The files are moved, if need be, by an external usb 2.0 hard drive.
I did try to setup a WiFi configuration, to boost signal strength, belkin router and belkin pci card. I think the hotspot signal interfered with the setup, so in the end I gave it up.