Your weaker fase is gonna be the early game because you don't gonna have a smoth build path.. In the Essence Reaver build you start Long Sword and it's easier to do your First Item but in this build you gonna start with Infinity Edge.
Infinity Edge is more expensive than Essence Reaver and has a "hard" build patch so that will affect your early game.
Your Mid Game isn't gonna be as good as the Essence Reaver build in terms of high damage but you are gonna have much better wave clear.
Your late game would be better than the Essence Reaver Build because of the high DPS.