The worst part of animating has become one of the most entertaining gadgets.
Simply a good, addictive time-killer. I've been at it for about 2 hours and I hadn't even noticed. It's also good for practicing lip-synch in general.
If I had to ask for more, it's be more lip ranges because it doesn't exactly cover all the common sounds, but I suppose what's here is enough to improvise with. More facial expressions would be nice too, but that's not really as necessary.