The fatal flaw of Buddhism ,as opposed to the Western traditions,is its emphasis on Willfulness as opposed to Surrender. If you need a concrete representation of this difference , look at the most fundamental position in practice-sitting erect vs. the most important position in Islamic practice-sajda(prostration) or in Christianity-kneeling.

Now within the domain of willfulness, Buddhism has a lot to teach us about attaining higher states. However, within the domain of surrender, its concepts are woefully inadequate -especially in terms of where all phenomena originate from. What this may imply in terms of our position in the hereafter I will leave to God to decide. That being said, many of the Buddhist nde experiences including the iconic one of the Burmese monk who converted to Christianity, are negative in nature!