HDMI switching. 8 ohm speakers with standard speaker wire is easily replaced.
Center speaker and 4 sats are really poor. No depth to the sound, it does not feel "full".
Did a side by side compare with a Philips DVD HTiB, and the Philips blew this system away even though the Philips is $50 cheaper. The problem is the speakers, I swapped in some old speakers from another system, and this system sounded great.