I went with the Pullet-Shut door because it doesn't take up as much room. Since I had to cut metal siding to install it, I wanted it to be as little work as possible.
I also have electric so I could plug in the battery.
It's the largest door. You can set it on a particular time or just let it open when the sun comes up.
There is an internal switch to set the photo sensor to open/close the door up to 90 mins later. You can open the door anytime you want to with a magnet key.
So it will open about 9:20 am but I let my girls out at 8:30 am, so I just use the magnet, which I leave attached to the side of my coop.
The other door I liked was the Omlet but it has to have room to slide open. Guillotine doors have to have room to slide up.