How best to level a concrete pour enough to finish with engineered floor planks. The new pour adjoins an existing pour on two sides and is 1/2" to 1 1/2" out of level in places.
The highest imperfections occur at places where existing walls were removed and current flooring needs to extend out.
Contractor did not supervise his cement subcontractor. Walls were still up at time of pour. He attempted to grind out the differences but was not successful.
It's an open area with two flooring types already in place. Adding a third would not be advisable and only 1 of 2 existing flooring types is still available.