Goldpool is Fool''s Gold
Wasting around 2000 units on some gold and a 0.10% probability for a 5* is not a smart move.
Investing the same in 7 ultimate could atleast give you some 3* and 4* instead of gold, and maybe even a 5* with higher probability.
Your units are wasted away without any reason for all those who threw away thousands of them in search of "GoldFool".
Opinion of a new player since 2 months, can pay 50$ every day but dont want to, and I still waiting on my first 5*.