Brinsea Octagon 20 advice please

It's all your faults, I've been mildly contemplating incubators and now it's getting serious, but..........

Do I want the ECO.......with the turning cradle..............without the turning cradle?
Or do I want the Advance............with the turning cradle......... or without?
The Advance Ex is not an option, too expensive, got to stop somewhere
 
Is it a real pain to turn the eggs? Does the black bit (controller) on the top hinder the view?
Does the Advance make it easier to keep the humidity right?
I know it takes 20 eggs but can you run it as well with half a dozen?
Hope some-one can answer at least some of the questions

Thank you

PS Don't tell him indoors 

and debbie knows all about being tempted to peek 

The good thing with the Octagon 20 -is you can always buy things like the cradle and humidity pump later if you want. I have the Octagon 20 adance and have added the pump which is brilliant I must say.

I really think you should get one of these. The video is long but very intresting.

http://www.natureform.com/video.html

I got a cheap manual incy and really enjoyed turning the eggs, and if like me dont have the space for many more birds used in february and later when an hatched cock is put with my leghorns then maybe 2/3 years when my older birds pass on is the expense worth it.