Here is what will make PRO almost perfect.
1. Keep the exp ratios right now because I will not play if it takes 1 month for 1 pokemon to lvl 100.
2. Make finding the right pokemon with the right nature and IVs super hard. Makes it more fun to catch that pokemon, and it will bring you more pride into having the perfect one.
3. The spawn of Shiny should be drop by alot. I see alot of Shiny shiny shiny shiny for sale everyday, it make me just want to have a regular one.
4. Everything else is fine :D just my 2 cents. I wish I can fly though :D hehehe
Last and least donate donate donate.