Great place to start, and to work/iterate

Google made a great tool that works off-line and has all of the other collaboration features that you expect. The overall appearance is quite bad compared to Keynote, but I feel its more assessable since my company uses Google apps for business. I still usually take the final slides and turn them into a keynote presentation since its so much better looking

NewAlexandria about Google Slides, v1.2017.342