"A++++ is the same as D- All the aftermarket screens are not that great for the iphone 6. The quality is low because the price is driven low by Apple's uncharacteristic policy of replacing simple cracked iphone 6 screens in house for $109. This forces all of us pros to stay under that--which isn't possible with quality parts.
Get your old screen back, and go to the Apple store for a genuine Apple screen for $109"
It's possible that the repair technician isn't as skilled as you were hoping him to be. These repairs can be quite difficult, especially for beginners, and it is not uncommon for a device that has been repaired to have slight imperfections like the one you describe. It's difficult to tell if this is down to negligence without inspecting the repair work, however you should expect this kind of result from technicians who are not Apple staff. Maybe the screen was not a genuine part, maybe it was but was damaged a little and they didn't notice, maybe your iPhone chassis was damaged when you dropped it and that's the best they could do. Most repair services have a warranty on their work, if your not happy with their work and you want your issue remedied, you should seek legal advice if they do not comply.
That LCD was glas replacement before and he selled it to you for a new one it's simple bussines you give him your broken lcd he repair it and sell to anotherone simple as that. Org lcd are perfectly in every corner
