Most buyers will just look at the price, floor level and unit size.
And they will get the judgement from there.
So how are you going to sell at record breaking price?
A positioning strategy can help to distinguish your unit from your competitors.
Understand your competitors in the project, so that you can better position your unit.
For example, what type units are they selling now? What size, which floor, what facing and their asking price?
From there, you can find out your advantage and identify your downside to make preparation.
And justify why your unit is worth for a record breaking price.