only too pleased
only too (something)
Very. Don't tell her the truth—she'd be only too glad to use it against you later. As a small business owner, I know only too well how tough it is to succeed in this economy.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
only too ˈpleased (to do something)very happy or willing to do something: We’re only too pleased to help.
See also: please
Farlex Partner Idioms Dictionary © Farlex 2017