Nico Schlömer

Tim: Easy. Just use

 >> matlab2tikz( 'myfile.tikz', 'height', '\figureheight', 'width', '\figurewidth' );

for all of your figures and set \figureheight and \figurewidth once in your LaTeX document.
See the README.

Hi Sebastien,

the #-issue should be fixed now; thanks for the report.
At the moment, I don't think pgfplots has a way of controlling the legend box aspect ratio in any way, but you may want to skim through its manual. Let me know in case you find something!

Well, the documentation may not be up-to-date all the time.
In general it's always worthwhile to take a peek at https://github.com/nicki/matlab2tikz/.
All the options are also listed in the source file itself of course, so you can always look at lines 125 ff. Should be pretty self-explainatory.

1) Not sure I understand what you mean.
2) You mean the image width? There are 'width' and 'height' arguments.
3) Option 'mathmode'.

Generally, if you found a bug or similar, it's easier for me to follow it up on GitHub.

Tim: Easy. Just use

 >> matlab2tikz( 'myfile.tikz', 'height', '\figureheight', 'width', '\figurewidth' );

for all of your figures and set \figureheight and \figurewidth once in your LaTeX document.
See the README.

There's always interest in patches to matlab2tikz! You could send a pull request on GitHub, or send the patch through by mail (use git format-patch to get properly credited) or create a pull request on GitHub. I don't mind either way.