The $25 you might make from saving $1000 is, to me, not worth the cost of having a reoccurring debt to service. Especially in the face of layoffs etc. I suppose someone might say a monthly payment is preferable to less savings in that situation… so I guess the financing could work in your favor depending on your situation.
A 0% is always better than paying upfront. There is the money you make from your saving account, the safety of having more available savings...
The only downside of taking a 0% loan is if you're bad at finance and getting that loan makes you spend more. Either by buying something more expensive that you would without the loan, or buying more stuff with the money you didn't have to give upfront.
