What do you like best?
Slide decks are so often boring and lesson life-drainers, especially for students, Not only is Pear Deck not boring, but its built in interactivity makes it useful as a learning tool, and a way to see where students (and adults!) are in a presentation, and to get valuable information.
What do you dislike?
Integration with other systems--like Google Slides and Powerpoint, can be tough, and importing decks you've already made doesn't always go smoothly.
Recommendations to others considering the product
Get good at building slides in Pear Deck, and using the interactivity features, rather than building them in another software and trying to import.
What business problems are you solving with the product? What benefits have you realized?
Presenting slides is hard, especially when you need to keep them lively and engaging. With Pear Deck, I can build in places where the people I'm presenting to interact, and it gives me valuable information about students or the people in workshops.