The upshot is that if you need a modem (which doesn't come in the system), it will probably take up your one free slot, unless you can find a USB modem that has working drivers. If you need a modem and another board-based feature, this isn't the PC for you.
Other than that, the inside looked very tidy and the case seemed better than many clone cases you see at Fry's. Also, it's reasonably quiet.
Having said all that, one thing that is important is that the CPU is slow. This reminds me what a farce the speed tests are. The 800 MHz CPU in the WalMart box has less than half the compute speed of a 800 MHz Pentium III, based on the openssl speed results.