I suppose thats all well and good for $10. Kudos as always for shipping something useful.
(1) https://github.com/guard/guard https://github.com/guard/guard/wiki/List-of-available-Guards
Maybe its targeted at web designers?
But yes, I can see that there is a decent market for this in the command-line illiterate, but I can't imagine that there is much crossover between that group and users of less/sass/coffescript/jslint.
And I had not issues with my 3 machines, FWIW.