I took delivery of a 9 button in August built by Mr. Miller. I love it. After years of playing an Irish Cairdin Mini-Deluxe it is perfect. It is as loud as just about anything I have heard except maybe Mr. Savoys accordions. I asked this same question a couple of months ago and the general consensus was go with what you like. For me, it was the smaller box. As Johnny Ace points out, if you are into Zydeco you will need that button though.