Personally, of the companies you mentioned, Grubhub is the only one I recall having heard of.
Differentiation can be as simple as name recognition. A canonical example might be "Kleenex". AirBnB is a recent startup that I think captured some of this.
In a growing market with low barriers to entry or an established commodity market, name recognition is pretty much all there is. In a market with one dominate player, "we are not the dominate player" is can also be a meaningful differentiator.
The question is good if it is in reference to comprehensive execution - that is the context includes marketing and advertising in addition to product. It's a bit weaker if it is just about product. Product-market fit is why both Porsche and Kia successfully manufacture cars people will buy.
Differentiation can be as simple as name recognition. A canonical example might be "Kleenex". AirBnB is a recent startup that I think captured some of this.
In a growing market with low barriers to entry or an established commodity market, name recognition is pretty much all there is. In a market with one dominate player, "we are not the dominate player" is can also be a meaningful differentiator.
The question is good if it is in reference to comprehensive execution - that is the context includes marketing and advertising in addition to product. It's a bit weaker if it is just about product. Product-market fit is why both Porsche and Kia successfully manufacture cars people will buy.