I have incubated in both and I find that a circulated air incubator is better, hands down. My favorite incubator is the HovaBator Genesis 1588. It's more of a 'set it and forget it' kind of incubator, without the price tag of the Brinsea. I paid $147 including shipping from the GQF website. The only issue I have had is that during the hatch, the humidity skyrocketed and made the controls malfunction. :/ Sounds scary but we took the top off, put a warm towel over the eggs, dried all the condensation off the inside that we could, and reset the temp on it. It did go back to normal and I had a great hatch. Now I will have to prop a corner up so there can be more ventilation during the hatching process. Even with that setback, it's still my fav.