I haven't used Chripy but there are a couple of other options you can try too.
- My favorite extension for working with Sass in Visual Studio is Mindscape's Web Workbench. It's well integrated, works with Visual Studio 2013 and it even supports Compass. If you use Less or CoffeeScript it will take care of those as well. I've chatted with one of the developers too and he was really responsive and friendly which is a huge plus in my book. Oh, and I hear more cool things are in the works too.
- SassyStudio is another possibility but it didn't seem as powerful as Web Workbench when I tried it.
- It isn't out yet but keep an eye on Web Essentials. At the moment it only supports LESS in terms of CSS preprocessors but Sass support has gotten a ton of requests and the program manager replied that "Development underway full throttle." Hopefully soon!
The last option and the one I fall back on a lot of time is just using an external tool watch my SASS files, compile them in the background and let Visual Studio reload the CSS files as they're compiled.
Installing Ruby and SASS via command line and telling it to watch your project directory for changes works fine — but I adore Prepros for this kind of thing.
I haven't tried them all but Scout, Koala, LiveReload, Compass.app and Fire.app are also similar options.
While these aren't always the right solutions for every project they give you a lot of flexibility and maturity that you won't necessarily find in Visual Studio extensions yet.
I hope that helps!
