I used to think a work dress had to disguise you a bit, boxy through the middle, sleeves to the elbow, something in a colour nobody would remember. I bought three of those in a row and felt like I was wearing a tablecloth to every meeting. What changed my mind was trying on a dress with an actual waist seam, something that nipped in rather than hung straight down from the shoulder. Same amount of coverage, completely different effect. Turns out looking professional and looking like a sack are not the same requirement, whatever the high street spent years implying.
Where it falls short is anywhere that isn't a desk. A work dress in proper structured fabric is not built for a day of being on your feet, lifting boxes, or sitting cross legged on a floor, it creases where it shouldn't and rides up in ways that make you very aware of your own tights. It's also the wrong pick for anywhere genuinely casual, because it reads as trying too hard the second you're not in an office. The gap between cheap and good shows up fast here too. A thin polyester version looks sharp for about a fortnight, then it starts clinging to tights with static, going slightly see through across the hips under office lighting, and bobbling under the arms from bag straps. A proper ponte or a wool blend holds its line through a whole winter of wear, doesn't crease the second you sit down for a two hour meeting, and actually gets more comfortable as the fabric relaxes to your shape. Cold wash, hang to dry rather than tumble, and a steamer instead of an iron if you can manage it, an iron on the wrong setting will leave a shine on cheaper fabric that never comes out.
Don't put it anywhere near bulky trainers or an oversized bag stuffed for the gym, it tips the whole look from sharp to apologetic. Busy prints under a tailored blazer fight each other too, pick one or the other to do the talking. And resist the urge to layer it under something equally structured, two stiff shapes together just look like armour.
The good ones get better with time, not worse. The fabric softens slightly, the shape settles to exactly how you stand and sit, and eventually it stops being the dress you save for presentations and becomes the one you reach for without thinking, because by then it knows your shape better than you remembered buying it for.