We don't plan on stopping. Admittedly this gets us in some trouble being a growing company, because we need to make sure our free product is the best for our customers AND we offer up stellar paid products. A whole lot of surface area, especially for a bootstrapped company (although we're past the Ramen stage - $10M+ ARR and 45 folks :)).
There's a lot of work we did to make sure we're learning as quickly as possible that really helps advance the mission on all fronts.
"Plus, we're able to show our customers they have a problem that we can then sell an add-on for." - I really like that part.