Nirvana with benefits?

Is the state of Nibbana the state of "not existing at all in any way" or is it nonexistence with benefits that are too deep to understand from the perspective of samsara? Does the only "bliss" pertaining to Nibbana happen during the Arahant's life or when an arahant dies? Just to be clear (because I hear conflicting words concerning this) we will be "no more" if we become enlightened and the path is learning how to accept this, right?