Our SaaS product is ready, but do we launch with simple pricing (15-day trial, 1 plan) or do we do what our competitors do (freemium, 4 plans)?

We're ready to launch. I was thinking of initially launching with a simple 15-day trial and a single paid plan that's around the average price point our competitors charge. This is fast to do and will only take a few days of dev effort. On the other hand, ALL of our competitors offer a free plan (restricted features, etc) and 4 paid plans on average. Each paid plan has feature restrictions, limits on other stuff, etc. That will probably take us an extra 2-4 weeks of dev effort to add the restrictions into the app on a per-plan basis, make sure it all works, let people upgrade between plans, etc. My question is this - should we just launch fast with sub-optimal pricing and fix it later, or should we invest the time to build out the plans with feature restrictions and a free plan, etc?