Yes, you keep full control of your ad while it's featured.
- You can edit the title, description, price or photos at any time.
- You can pause or delete the ad once the item is sold.
Please note: if you delete an ad before its featuring period ends, the remaining time is not refunded, because the boost was already active. So only delete the ad once the sale is genuinely done.
If you're just fixing a typo or improving your photos, no problem: the boost continues as normal.