Most Mavics DO NOT have quirks. Where are you getting your information from? I have bought, sold and repaired over 350 DJI products, including over 100 Mavics, and I always demo the product for the customer if they are buying it locally and help them get it set up. I also offer post-sales support, and I can count on my hand the number of quirks customers have had that required their Mavics to be sent back to DJI. Most problems are due to improper setup or operation of the drone.
I give a little bit of advice and problem solving here, and very few times will I relent and tell the owner to send it back to DJI because its a mechanical problem from the factory. Its a well known fact that alot of people join here to get advice because they have a setup problem, but most of those problems are cured by the advice they get here.