Internet is fine and acceptable, as no big player like Airtel, Jio provide facility here in D Block DDA, we don't have other better option than Millennium, as of now.
Rest normal internet is fine.you can give a try, But never never opt for more than 3 month rental scheme, as you still have option to escape out in case of dissatisfaction.
You have to arrange your own router and need to pay ₹1000 extra for their convertor used for fibre to LAN.
They need to work on the backend of their company to maintain the customer database before they provide any service to them. On internet side, it was very healthy connection, faced no issues in a year.