XG27ACDNG - questions.

Hi, currently I have an MO27Q28G which I will be returning because I cannot stand the gray banding that it has.

I'm looking for a new alternative for it, and XG27ACDNG seems like a good one - I don't really want to bother with a panel lottery again for MO27Q28G.

1. Does it have a glossy coating (basically like a mirror) or more of a semi-glossy one (not as reflective)?
2. Are the purple blacks really as big of an issue? I personally have an 1400lm light in my room, not much sun getting in.
3. Do you think it will be a downgrade or an upgrade comparing to the MO27Q28G?