Anyone with experience using SymTrain?

Our org is considering using SymTrain as a complement to our Storyline courses to help coach our new hires (call agents). We have a sales demo scheduled, but I’d like to hear from real customers and am having trouble finding anything that wasn’t produced as marketing. Figured I’d ask the best L&D resource I know of :) 

If you have experience with the system, would you mind sharing how it’s been/was?