Here're some statements about the guitar which caught my attention.
Teachers do like to teach the thing they do best themselves, so if you have a classically-trained guitar teacher, he or she might be reluctant to teach you in any other style.
Makes me recall the number of times I tried to find tactful ways of changing discussions with my students whenever they start talking about pop or folk music. (Don't you see the big grin on my face?)
In our view it is very difficult to learn, and your progress is likely to be slow.
You can trust the writer's judgement on that. Of course, I can't exactly compare it to other instruments for I haven't taken up a second instrument, yet.
The classical guitar is quiet, and therefore not well suited to playing with other instruments, so playing it could well be a solitary pursuit.
Not quite a true statement. I would rather indulge myself in some chamber music than solo music. Anyway, I've realised that classical guitarists who prefer solo playing are often lacking in ability to listen and co-ordinate with other musicians. Or maybe the other way around, they probably don't like playing with other musicians for they can't co-ordinate and listen well.
That's pretty much about it. Not much, but do take some effort to visit this pretty decent site.