Some truth from Joshua Porter in There is no later for your customers (my emphasis added):

There is no later for your customers. The only thing that matters is what they’re using right now. They don’t give a shit about your roadmap, your brilliant feature pipeline, or your vision of a better future. They’re trying to get work done right now and they only know what you’ve already delivered. So build a discipline around your launches, knowing that your ‘temporary, let’s get this out quickly and iterate later’ release is the current reality for your customers. Build up your attention to detail and force yourself to treat every launch like it is your final launch. Imagine that you’ll never be able to deploy something after this…have you done your best work?

Release early, release often is not an excuse to release crap…