The sounds are modeled, not sampled, so they're not going to sound like "real" acoustic guitars...more like "CGI" acoustic guitars. But you also don't have velocity splits, sample splits, etc. And the editing makes a difference; with sampled guitars, you're pretty much stuck with whatever was sampled. With GS-2, I could (for example) tame pick sounds easily.
 
As a guitar player, both sampled and modeled guitars sound "fake" to me. But modeled guitars give me sounds I can't get with my acoustic or electric guitars, so I find them more useful in terms of adding textures, doubling miked guitar parts, doing solos and chord shapes that would be impossible to play on real guitars, etc.

ahh, but there is the rub Craig, you ARE a guitarist and as such have no real need for authentic guitar sound as you create your own. For keyboardists who don't play guitar but want realistic guitar parts, then sound is critical. jmo

joden
ahh, but there is the rub Craig, you ARE a guitarist and as such have no real need for authentic guitar sound as you create your own. For keyboardists who don't play guitar but want realistic guitar parts, then sound is critical. jmo

If you want a virtual guitar program that uses samples instead of modeling, there are UJAM's Virtual Guitarist programs. But consider this...
 
I once did a seminar for Peavey in Nashville on synthesis using their DPM3 synth (still a great synth IMHO). Someone in the audience said "I have a really hard time getting a good guitar sound from my keyboard. How can I get a really convincing guitar sound?" I said "You're in NASHVILLE! Hire a guitar player!"
 
I know what you're saying, but I'm not sure "accuracy" is more important than feel. For example I can't play saxophone but to my ears, sampled saxes sound as fake as sampled guitars (if not more so). So I never use sampled saxes. I use modeled wind instruments to play the kind of lead line a sax would play. Then no one can say "That sax sounds fake." Instead they'll (hopefully) say "I like that lead line...reminds me of a sax."
 
I do think if I was to record some of the GS-2 nylon guitar sounds on a track, some people would ask "What mic did you use?"
 
This audio example sounds pretty convincing, especially since the guitars aren't in a track but bare naked and mixed up front...this one has acoustic guitar sounds in context. Of course, much depends on how well someone learns the various mute, muffled, upstroke, downstroke and other expressive options.
 
 

Nope sorry, that first demo seems pretty GS2 ish to me :) its just got that mid-to upper "twang" about it. Sounds nothing like a real acoustic nylon, well to me anyway. And fwiw, I think accuracy when trying to emulate guitar parts as a keyboard player is extremely important.
 
For example.. https://www.youtube.com/watch?v=ZABPh4bPHGY or 12 string steel https://soundcloud.com/ikmultimedia/sets/st3-acousticguitar  and acousctic steel https://soundcloud.com/ikmultimedia/st3-steelstring2b?in=ikmultimedia/sets/st3-acousticguitar these are from Sampletank 3, and although still not quite full authentic, imo, they are much closer than GS2, albeit they are sampled and not modelled.
 
FWIW, when I use these sorts of things I also try to keep the notes (and chords with correct roots) pretty much as they would be on a guitar - for example nothing below E (unless its drop tuned of course haha!)

FWIW that first example wasn't supposed to be a nylon string guitar. I'll record something sometime and post it.
 

both your examples are very good, but not perfect.
If you really want to get a great guitar sound, Get the real thing.
As Craig mentioned, when you try and substitute an instrument that isn't done well, people are left thinking "That sounds fake". Even if you choose another instrument (sometimes even piano substituted for guitar) it can sound better/ more realistic.

Anderton
FWIW that first example wasn't supposed to be a nylon string guitar. I'll record something sometime and post it.
 

that'd be cool

chuckebaby
both your examples are very good, but not perfect.
If you really want to get a great guitar sound, Get the real thing.....

haha, if only!!  Gigs where I am can't really afford the extra, and there are none about (players that is) well, who are available...so when one wants to add a guitar, one needs to compromise principles a tad to achieve a result :-)
 
FWIW I actually use guitar Real Tracks from PG Music for pretty much all the guitar backing tracks I use. And THEY are real!!

When using samplers, you might find the tips in this article helpful. I agree that loops of actual playing will almost always be better than trying to "play" parts. For drums, I use a lot of acoustic drum loops by Chris McHugh - even drummers think my songs have real drum parts...because they do 

haha, absolutely Craig - why I use em (just guitars though), for drums all I use is a kick drum stomper .....thanks for the link i'll have a read