The poplin is lightweight enough that I didn't overheat wearing it straight through a warm afternoon outside, but it still looks crisp enough for a meeting. The plaid pattern is subtle enough that it doesn't clash with jeans or chinos, and it came out of the wash without needing much ironing.
The plaid is a bit bolder in person than the photos suggested, but honestly it works fine with chinos for the office. Wore it straight through to a patio lunch and it didn't feel stiff or heavy by the end of the day.