Neil's a fantastic human and great mathematician - I'll just post my same comment from the last time a story came up about him here:
Great to see this article about Neil, a warm and brilliant guy - I had the chance to meet him personally the last time the joint AMS meetings were in San Francisco.
When I submitted a simple integer sequence[1][2] to OEIS on Thanksgiving Day a few years ago, he took time that very day to respond and coach and educate me about some delightful related math.