There are a few things that we found to be very cool about the P7F7-E WS. We are talking about features beyond the multi-GPU setup and the extra memory. One thing that stands out is the EPU and TPU software. These two combined (at stock speeds) help reduce the power draw on the system as well as balancing the thermal load.
But beyond that is the audio. Although some may think that Realtek has a better CODEC, personally I think the VIA VT2020 included with the P7F7E-WS has a cleaner, crisper sound.
The dual teamed LAN ports also are a great feature. The included software is excellent and actually works. For our testing we set the team up using the 802.3ad LACP; this allowed us to maintain 70+ MB/s transfer rates even on large files (2GB in size). Not bad at all, especially for video work.
The installation of the board went well. We had almost no issues with it other than a slight misunderstanding on our part. When we first received it we thought our Registered ECC DDR3 would work. However, the P7F7-E WS does not support ECC registered RAM. We ended up having to fall back on our standard DDR3 kit.