When to send it
Send this every month, a few days after boxes land, to all your subscribers or a rotating slice of them. Keep the questions identical each time. The value of a pulse survey is the trend: one month's scores mean little alone, but a year of months side by side shows which boxes worked.
Add the month to the link, for example ?month=October. The survey stores it as a hidden field so every answer carries its month and you can compare months in the CSV export, and it appears in the survey description so subscribers know which box you're asking about.
Why these questions
The survey is short on purpose. People asked every month stop answering if it takes more than a minute.
A star rating for this month's box gives you the headline number. An optional text box then asks for the highlight. Those answers tell you which items to bring back, and they're often the quickest and most cheerful read in the whole survey.
If the box got three stars or fewer, a follow-up asks what didn't work. Happy subscribers never see it, which keeps the survey quick for most people and gives you focused answers from the rest.
The value question asks how the box felt for the price this month: great value, fair, or not worth it. Value is the test subscribers apply when deciding whether to keep paying, and a run of "not worth it" months is an early sign of cancellations ahead.
The last question asks what they'd like more of: new products, favourites from earlier boxes, seasonal items, larger sizes or more variety. Use it to plan the next few boxes.
The coupon
10% off an add-on, with a shared code, is a small thank-you you can repeat every month without cutting into the subscription price. It also nudges subscribers toward the extras you sell alongside the box. Every subscriber who finishes gets the code, whatever rating they give.
What to do with the answers
Track the average star rating and the share of "not worth it" answers together, month by month. When a month dips, read that month's follow-ups on their own; the cause is usually one item or one supplier. Feed the "more of" answers into planning a couple of months ahead. If dips line up with a rise in pauses, the before you pause results will show whether the same complaints come up there. New subscribers have their own survey, first box feedback.