There is no one prudent approach for all product launch. It very much also depends on type of market and support from customers. In consumer or high quantity industrial market, perfect launch is required. However, in low volume market, customer is hurry and ready to take risk for eventual tune at the end. Each product launch is to evaluated for market it serves.
everyone wish for a perfect product launch, at right time and place. But its hard to judge and especially difficult for small startup companies with limited resources. Most of the time there is too much pressure from investors to bring product to the market and make a fortune.
Hey, We can all agree that your first impression is extremely important. However, lets not forget about the importance of pivoting to better meet what your audience needs. If your product isn't working out, FIX IT or CHANGE. The important part is that you do it quickly and do it well.