No substrate incubation?

I was reading last months or two months ago reptiles magazine. Inside was a build your own cooler incubator, printed right on the cover. I was checking it out and i saw he has been using a no substrate incubation. What are your opinions on this. I don't think i would want to try this right away especially for my first clutches, just wondering.

i'll probably use this method for my first incubation. i havent read anything that makes it better or worse than that with a substrate. but honestly, i have not looked to far past 'how-to's' mainly because i'm worried about getting my snakes to breed first! :P

i'm sure prehaps some of the better experienced people could fill you in on a difference..

I know people that use no substrate and people that do. Its all in how you want to do it.