Dillo: the font rendering was terrible, I had to apply a patch to get the thing to compile, and specifying that it be compiled with SSL support didn’t get me SSL support. Everything is
https these days, so it was a total no-go.
Waterfox was a nice experience. It grabbed my configuration from Firefox, set up sync, and was most of the way to a drop-in replacement. The only issue I had was my containers set up didn’t come along. It may become my browser of choice.