The breadth of curriculum is the biggest benefit for me. The world of technology moves faster than any one person can keep up with, Pluralsight is great for keep abreast of new and even emerging technologies, as well as, the tried and true tech stacks.
One one problem i have been bothered with. Some courses that are a series of videos are difficult to track or identify the order the course was to be taken in, without first taken a trial and error approach. Would be great to have the multi video or multi lesson courses always tied to a single syllabus or contents course to walk through the series in order.
With the inclusion of CodeSchool now with pluralsight this is truly the best site out there in the learning community.
Continuous education of the technology world is my largest problem to solve. So much exists in the tech arena and the need to use or experiment with different technologies is a must these days. PS provides that platform to get a quick start on these.