joden
It would seem from replies so far that it is indeed worth getting in addition to K 8, and that apart from funk guitars, K8 does not have a lot to offer.
Funk Guitarist is in Komplete Ultimate, not Komplete. There are guitars in the Kontakt factory library, these are the ones I referred to when I said I did not think they would add much over and above the ASS stuff.
Komplete is full goodies, Komplete ultimate even more so. There is tremendous value here, but if you buy
just for the guitars, then you will be disappointed. If you are looking for a broad range of sounds from Pianos, Orchestra, drums, to some of the most advanced synths around you will not be disappointed by Komplete. It also contains Guitar Rig 5 a ultra powerful and very versatile amp and effects simulator primarily aimed at guitars. This can change even the most mundain guitar VST sound beyond recognition. And once you have the full version of Kontakt at your disposal there are some wonderful third party guitar libraries.
To expand on my last reply
I have ASS Strum Electric and I don't rate the sound that highly, it's useful in certain circumstances, mainly highly effected guitar sounds.
Orange Tree Evolution, Lap Steel and Steel strings are my main guitar libraries and have a similar type of chord voicing and strum engine to the ASS stuff.
Indiginus Torch and Acoustic Guitar collection still sound a lot better than the ASS stuff (IMHO) but take a different approach to chord voicing, the limitation is 12 chord voicing per song, I do however like the velocity dependent mute to sustain used by Indiginus. In both cases there is also a pattern sequencer for strumming patterns. Both companies have you tube videos demonstrating the products.
Music Labs Real Guitar series do not need Kontakt and are less resource hungry than Orange Tree. They probably have the best chord detection system of the lot. You can also setup MIDI out to send the strums to another VSTi, of course specific features such as the mute articulations wont always translate to the other VSTi.
The Music Lab electric guitars are completely clean and need to be put through an amp sim like Guitar Rig or Amplitube. Torch and Evolution have presets that use Kontakt's built in amp and cab simulation, or you can turn that off and send the DI to a map sim.