This new version is a whole different animal. Not only is it much prettier (great design) but they seem to have seriously improved their relevance algorithms. I would be very interested to hear from their data team why the relevance is so much better now - anyone from Prismatic monitoring these comments?
There is no better indicator of "Likes" than actual consumption. Consumption is a vote with dollars and time and carries a lot more meaning than clicking on a stupid little blue button.
I have to add that most companies would have rested on their laurels with great UIs like the previous Prismatic apps. So, I applaud these guys for not settling on an already great tool, but taking risks to move forward.