Advantages of Theming with Fusion as base theme

Thats a great question. But you shoudl first know the pros and cons and then market it to your clients.

I myself pondered around this for months while finally making a decision to move to using fusion as base theme over any other drupal theme. I will share my experience with you.

Below are the advantages that I have come across:-

1) Fusion is a powerful and supported base theme, with layout and style configuration options built in that you (or your clients) can control through Drupal's UI.

2) It helps you build Drupal themes faster by using collapsible regions and theme settings to set up the layout you would need.

3)It allows in creating more sustainable CSS styles in your theme.

4)Fusion has been built after years of feedback from designers, site builders, clients, and developers. It's a powerful and supported base theme, with layout and style configuration options built in that you (or your clients) can control through Drupal's UI using the Skinr module. Based on a simplified 960px or fluid 12 or 16-column grid, you can easily define your own custom grid if needed.

5) Fusion includes common design patterns as pre-defined layout options and styles that can be applied to your blocks, Panel panes, Views, and content types.For example, adding a single row login block, multi-column footer menu with headers, equal height columns, or just about any browser-bulletproof layout imaginable can be done with a few clicks.

6) Moreover, Theming with Fusion means less time working on problems that others have already solved. Fusion is the very best of friends with Drupal's output, including theming for popular modules like Views and Imagefield, and lots of commented starter CSS for Ubercart.

7) You can use collapsible regions and theme settings to set up the layout you need

8)You can use reusable CSS styles in your theme.

Go ahead and be 100% sure.

Cheers!
Stephan