Adding a Coop + Autodoor -- Any thoughts?

[Hentrovert]

We are expanding our flock in the spring, and to prepare for our new chickens we are intending to add another coop and branch of our chicken run. Currently we have 6 hens living in 2 Omlet Eglu Cubes (usually 3 and 3 split evenly, but sometimes 4 and 2 depending on the night) that have served us extremely well, however, I'd love to have a coop with larger interior space in case the new pullets + our old flock all want to pile in to one area. We are not interested in wooden coops at this time, so we have narrowed our choices to the Omlet Eglu Pro + Omlet Autodoor *OR* the Nestera Wagon Coop + Run-Chicken Autodoor. We are also considering the Nestera Aspen 10 with an Omlet Autodoor.

Does anyone have experience with both brands? Nestera is still expensive, but less so than the Omlet. The interior space looks superior with a lot of head room, and the perches appear to suit a chicken's natural instincts better. However, I'm extremely confident in the Omlet coops' security, and not sure about the Nestera door design. Also, the plastic is thick on the omlet and more pliable on the Nestera. I'd also love to hear about the Run-Chicken autodoor as an option, and whether you feel it is reliable and secure. Is the bluetooth model upgrade worth it?

We are still ending up with a relatively small flock (we're adding 5 pullets), but I want to ensure that they have as much space as we can give them.

Thanks! Research has me going back and forth a LOT.