Hey! I just got one of these at a thrift store the other day for a couple bucks.
If you want to mess around with pentesting your own devices, there is build based one a specific version of openWRT compatible with it that will let you turn it into a wifi pineapple and it works quite well. Because of the USB ports on the back, you can plug in an additional wifi dongle to add another radio and make it more effective for that.
Here is the repo for the pineapple software based on a specific version of openWRT:
https://github.com/xchwarze/wifi-pineapple-cloner-builds
