Great additions, making Trello even better and more powerful, thank you.

Thank you! Very, very good addon.

#numbers are a great help.

I love the fact that you put the name of the tags into the web page layout!

I would like to see the count of each item as a switch to turn on or off

It does exactly what is described.
The only thing I miss is the ability to enable/disable certain features, like expanding tags names inside each card.

It does what it used to do a previous addon https://addons.mozilla.org/en-US/firefox/addon/card-color-titles-for-trello/ , this is to display the titles of the labels on each card.