It's been a long time since I owned a jumbo EKO 12 string guitar. That was a monster, but it had a big sound. After thinking about it for a long time, with my wife repeating, "What do you need another guitar for?" I took the plunge and opted for the Yamaha.
I must confess that it was the compact size that fell for, and I did not expect it to sound as full as my EKO. It doesn't, of course, but it is a joy, and much easier, to play - with quite a low action. The built in tuner is a very useful bonus. The sound (using a D tuning) is better than I anticipated and it is a beautifully finished off instrument.
My only negative comment relates to the strap buttons. I usually use the locking clip nuts to hold the strap on safely. I had no realised that the jack socket went through the button. With a thickish leather strap, I had to use a set of rubber washers over the top of the strap to hold it on the buttons securely.
In summary, an excellent guitar that sounds bigger than it looks. Although not a regular performer any more, I wish I had bought it earlier.