Welcome to you from Hauptmann, in the sovereign state of Texas!
The
MA2 is a fabulous machine for the beginner and the pro alike. But your needs as a pro are different from those of a hobbyist. You need to develop a high degree of piloting skill. Practice, practice, practice until your stick movements become second nature to you, just as steering adjustments are while driving your car.
You need to be able to make subtle corrections without conscious thought--you just make them. You'll be flying close to stationary objects while doing, say, infrastructure surveillance, where a wrong move could cause a crash.
Practice lost drone recovery (you will crash, and you will lose your MA2). Just be sure you know how to retrieve it. Time is money. A lost drone will cost you both time and money, and also perhaps a client.
Sorry about the Fly App. We all hope that DJI will upgrade it without such tiny fonts and icons.
Be sure to read, reread and reread the manual!
Good luck with your new endeavor. Glad to have you with us!