I owned a Sierra and love the cut and fabric and as soon as I saw the Eliza on the list of coming dresses I decided that she would be my dress in the 100 day challenge. I bought the Marionberry color and my true size.
I have loved every day I have worn it. The color are soft and saturated and suits my Nordic coloring. I was a little hesitant that the Marionberry color should be limiting as it is in the red color scale but it works excellent with black, blue, green, gray and pretty much everything else in my wardrobe. The dark marionberry tights worked paired excellent off course. I particularly liked that the were not the exact same color.
One of the things I particularly like with Eliza is that the arms are slightly longer than in my Rowena. Can be good to keep in mind if you have very short arms. I also suggest to stick to your regular size and don't size down in this one. It keeps its shape well and as the others don't have to be washed very often. Just make 100% sure that your deodorant doesn't contain aluminum. Most regular does have that. It will destroy the merino fibers and the dress will start to smell.
All in all, this is my favorite dress. It can be dressed up and dressed down. I've worn it at fancy dinners with a belt and a silk shawl as well as at office where the predominant dress is sweaters, jeans and sneakers.