A lot of people really like their Eglus and some have purchased a second one, to use with additional chickens. So, I think like anything else, they work for some and not for others.
I'm not sure they'd be the best choice for you, though. Eglus were designed in a country that doesn't get the extremes of weather we get here. In an area that gets really hot, I think your chickens are going to need more ventilation than the Eglu provides, unless you left the door to the house open all the time. I'd have safety concerns about doing that at night.
You would get a lot of support from the people on the forum, if you want to try building something. A nice coat of paint makes any job look pretty good. Many people have taken a lot of how-to pictures as they built their coops, that I think you'd find very helpful.
Quite a few people have purchased and modified sheds, playhouses and dog houses. There are a lot of pictures of those here, also. That might be a really good way for you to go.
You might want to browse the coops page or look at some of the playhouse threads. I think it'll give you a better idea of what you want to do. As you start spending more time looking at coops, your husband may begin to take an interest. Does he have a particular objection or concern about having chickens?