Naval is such a genuinely nice and caring guy. So many investors say they are entrepreneur friendly, but hardly any of them live up to that when things get hairy. Naval is a guy who absolutely lives the mantra of putting entrepreneurs first and goes above and beyond to help them out in so many ways. There is a long story about the stuff he went through to get where he is (when he was at epinions), google for it- its worth a read.
I wont get into it too much, but I owe alot to Naval for where I am today. The help, advice and just conversations he gives to entrepreneurs is completely 'no bullshit, no fluff'. All in all, its very refreshing to see that AngelList has risen to the top and has helped disrupt the 'old boys / sand hill road' way of doing things.