A good standing desk converter should last you years, so don't settle for cheap plastic that wobbles when you type. Look for a sturdy frame and a smooth height adjustment mechanism that doesn't strain your back.
Tech companies often drop new models in the spring, which makes January the sweet spot for finding last year's gear on clearance. You get the same build quality at a discount because it's technically last season's inventory.
That 0% intro APR period is a deadline, not free money. If you have a balance left over once those 15 months are up, the bank will charge you interest on the remaining amount, which can get expensive fast.