Musings: Am I really that great?

I just got a phone call from one of my friends here at school that I help out a bit with various things. Usually after I do something for him he'll say "thank you so much" or "you're awesome" or "you're amazing" or something else like that to which I usually reply "okay....?" or "thanks..." So when we were talking just now he asked me if I'd done this or that and what I was doing for the rest of the afternoon and all that kind of stuff and then he said "you're so cool" I said "thanks" and he told me that "you make me smile and laugh, exspecially when I'm having a bad day" and he said some other stuff about how I'm a really cool person and stuff like that.

But even with hearing these things I still wonder... "am I really what he says? am I really that great of a person? and do I have this effect on people other then him?"