I like the idea of integrated payments and login - I use Auth0 and ChargeBee at the moment. I hope you know what you are getting yourself in to :-) these are two highly complex areas.<p>The best chance of succeeding in this I would guess is to get funding and scale quickly. I&#x27;ve seen people attack this area before and they basically run out of money and the project hangs. You need to project a lot of confidence and stability while moving fast - so adequate funding will be key.<p>Good luck, if you nail this hundreds of SaaS startups will be very grateful.<p>PS: pricing is way too generous, think in terms of revenue.<p>So a SaaS with 1000 users is getting something like $20K gross a month, with 10K users that&#x27;s $200K gross.<p>I&#x27;d change your levels to something like<p>100, 500, 1000, 5000, Contact Us