They are great -

Terrible The games are decent but when you need help, the customer support is extremely useless. Talking to them is like talking to a brick wall. Automatic and repeat responses.

Corporate greed to extreme - inexistent customer service I played Marvel Contest of Champions for 7 years. Recently I accidentally purchased a bundle for 3000 units. Immediately after I submitted a support ticket to have the transaction cancelled and my units refunded. the security checks included 5 questions to provide information from 7 years ago. I did my best to answer them, provided screenshots from my google play account, forwarded whatever emails I still had. after all that, they went completely silent. It is utterly disappointing and will stop any in-app purchases and seriously considering uninstalling the game.

Extortionist company I am a loyal player which spent over $100 in just a week of playing Shop Titans. The most recent in-app purchase I bought did not show up in my account. Thinking it was some payment delay, I waited. After a few days, still no item so I requested for a refund from iTunes. Later, my account was banned from important features and my gems (premium currency) was at a negative amount. I reached out to player support and they told me I need to pay 2x the amount to have my account unbanned & gems restored to the original amount. On top of that, they blame the player for fraud when we didn’t receive our product. I don’t mind spending money but I will not support a company with such atrocious player support & practices.

MCOC is a $$$ and time drain To be honest...its about maximizing profits $$$. Everything else is secondary. The game is designed to make it painfully hard to progress, to the extent that the user feels exhausted and gives in to spend $$$ to progress faster. It was less so in the beginning years, but the corporate greed set in at increasing rates. It became unenjoyable at a point for many users. Don't waste your time and $$$.