Migration to Zoho CRM API version 2 is a BIG PAIN!!!

Migration to Zoho CRM API version 2 is a BIG PAIN!!!

I have been working on it for 2 days with a zoho support engineer and it's still not done!!!
Zoho engineers are useless and have no ready made answers!!!
I see no benefits in this new API, only PAIN, PAIN PAIN!!!
Zoho - are you interested in making customer's lives easier or Harder????