I know a couple of other people who had or have them (D10s). They sound shrill and harsh, and tuning (intonation) is suspect.

Blueridge shound like shit too. I cannot understand the adulation they get. Try Indie, or Ayers, or (if you must) Seagull for cheap guitars.

Sigmas (not the D-1) do a pretty good impersonation of the Martin sound.

Some Epiphones sound OK too.

I have seen 3 Washburns ever ( a 12-string, a 12-fret slotted head dreadnought, and an (I think) DM34 that were good.