I got two of these elsewhere. They both rock solid after almost two years of use. Never rebooted, always ready. I have Elastix on LAN and one phone connected inside and one outside of my LAN (overseas). Setup is simple and obvious to anyone familiar with SIP settings. The only non-obvious setting is server type. Elastix (video enabled) Asterisk and VoIP Proxy Type set as AS5200 for SIP. I've tried this phone with other SIP servers and it always just works.
Applications functional but rather a gimmick, I never use them. Very unusual use of SIM card, just to copy phone book.
The good: sound is great, loud and clear both ways with minimal latency. Speakerphone is pretty good. WiFi, WPA2, works great. Everything as expected.
Not so good but OK: finish (one star off just for that), including numeric buttons, it's just silver paint like on electronics from the 80s. Camera very grainy under normal room light, but still useable. Display maybe TFT, but has that look and feel of first Nokia's color cell display. Not a big deal, it still works and background and video still very useable.
The bad: I don't really see any bad for this phone.
I'm happy I got two of these for fraction of original price.
Update: Video works great with LinPhone on iPad.