I have the S6+ cedar GT or whatever it's called. Dreadnought body. Really full sound, nice resonation. It's like an orchestra. It doesn't have bass response you get with Martin dreads but it has a silvery brightness that makes up for it.

The drawback for me is I have trouble singing over it sometimes because of my weak voice. So I resort to my Tak or Washburn because they're not as boomy for certain types of songs. But the songs that I can sing on the Seagull always sound great.

I see nothing wrong with Seagull.