Our founder finished YC's Startup School 10 week program! We devoted a solid 10 weeks of full time commitment to build and grow while we went through the program.
We re-launched our beta after a complete rewrite of the front end, and then focused on growth, where we had some ups and downs. We're still trying to find the perfect product market fit and acquire users.
We learned a lot about growth, finding product market fit, and to keep re-launching. I would highly recommend participating in the program and group sessions to every founder.