Button Q

Hi All,

I picked up my jacket again a few weeks ago after not touching it all summer. I am half-way done with the back (the fronts were done earlier this year) so I am thinking about buttons. I was perusing the site and noticed some people have done a one-button version that I really like. My question is does is work? Does it stay closed? Any other issues you want to share?

Thanks. Everyone's jackets look so great, inspiration to get mine completed!