Well, I don't mind that he shows up every two days out of a week. I mostly put a lot of grinding into my base on the weekends over weekdays, which with Marco being there helps to trade out some things for benefits. I think part of the reason he only really shows up for two days out of a week is so that nations that are the target of that rotation aren't going to be so hunted out of the matchmaking that you don't even see them for the entire week. Heck, I barely saw any feeder bases of Roman or Korean nation in low medal ranges when it was their turn in the Marco target list for NTGs. NTGs for other NTGs is also useful. Diamonds could definitely use a bit more uses, as is it is limited to mercenaries, blessings, and the oil shipments. And I don't really have much of an issue with gold or food, both of those resources have been a moot point in the growing grind for oil; almost all the walls surrounding my oil well are on their way to being custard walls in the grind for oil because of all the surplus gold and food earned.
To avoid the NTG issue, we can treat marco like the Card Shop in Clash Royale. The offers change every day with exception of the 3:2 ntg and 2:1 food and the diamond trade.
I see the 2:1 gold:food trade to be more of a, man im 300k short on gold for this upgrade, my troops are going to take 35 min to train and i have to go, so ill take my excess food and trade it for gold so i can start the upgrade.
If you are grinding walls, there is no reason to make a food/gold exchange.
I was even thinking about the potential of something like 10,000:1 food/gold
il.
Im just getting into IA a bit more deeply and realize how much oil everything is going to take. It took me about 5 hours today to grind 43k oil so i could upgrade my castle with the discount we get right now.
I think something along the lines i have stated would go a long way into making the player base happy. First i want them to fix sandbagging and some of the huge bugs in the game, then look into this idea.