I think it's right in line with what other Christians have witnessed to me (two of them had a near-death-experience). It also fits visions my Christian mother had when my nephew appeared to her in a dream the morning he died, telling her to not worry about him, that he was alright.
I don't believe this flesh existence we are in today is what God originally intended for us. Eccl.12:5-7 reveals there's a "silver cord" involved linking our spirit with our flesh body, and when it is severed at death, the flesh goes back to the earthly elements where it came from, and our spirit goes back to God Who gave it.
Apostle Paul said in 2 Cor.5 that if our earthly tabernacle (flesh) were dissolved, we have (present tense) a tabernacle not made with hands, but eternal in the heavens.
New Testament Scripture about the soul, spirit, and flesh reveals our spirit with soul cannot be separated, but our spirit with soul can be separated from our flesh.
Heaven is for real, no doubt about that. It's simply in a different dimension than our earthly dimension. In 2 Cor.12, Paul spoke of one that was caught up to the third Heaven, to Paradise. No question there at all just where he was talking about. But HOW did that one caught up live to give that witness?
So I see no reason to doubt a lot of the NDE's cases, and what they experienced while outside their flesh, for even Paul's 2 Cor.12 example proves that our spirit continues conscious awareness apart from our flesh. It suggests that our flesh body is actually not the real part of us, but a shell only.