I ordered a 180 with an awning and after arriving at the dealers to pick up the new pod, discovered the pod they prepped came instead with a dome. Bummed at first and after fumbling setting it up for the first time decided I can do without it. In the bag it stayed for the first season.
This season my wife talked me into trying it again and am glad she did. Not just double the space of the pod, but when most of our outings this season where graced with punishing T-storms, including wind and heavy rain, instead of retreating inside where it was either sweltering or ear-splitting from the AC, we were relaxed outside with cocktails protected by the surprisingly strong (when properly staked down) dome. Other campers had to scramble to retract their awnings... if they were lucky enough to be around when the winds came... otherwise what they returned to wasn’t pretty.
A side benefit is the near tent-like nature when the skirt is added. Our 13-year old daughter (too tall to fit the ridiculously narrow dinette/bed in the 180) prefers to sleep instead in the dome with its space, privacy and relative security from critters provided by the skirt.
So, I’m a convert. There are some improvements Dometic might make, like using beefier zippers and providing better stakes. Instructions on customizing the skirt to fit your particular camper would help (wheel wells and steps).