Yamaha C40 ii M is matte finish,you cannnot put polish on it,just wipe with slightly damp cloth when it gets dirty.
C 40 ii is the orangy glossy finish.Both are same specs,but matte one sounds better IMO.
The top,back and sides are very thin so you have to be extremely careful handling it. It tends to crack on the bottom easilly with just a slight knock if you drop it accidentally.
If you have extra bucks,get the C70 or C80.The machine heads on these two models are more reliable.
All the Yamaha C series are laminated guitars,the neck profile is comfortable,good intonation and easy to play.
2017 Karel Dedain Spruce/Maple (Torres) 64cm
1998 Yamaha GD 10, Spruce/IRW 65cm
1988 Alhambra AL 8, Cedar/IRW 65cm