How can you determine if a product is a winner?

If your product has the following five factors, it can be a winning product:

1. Most importantly, a winning product needs to solve customers' problems and make their life manageable than ever.
2. It should deliver a unique value proposition that people can't get from other products.
3. The product must have a "wow" factor, something that sticks to the buyer's mind while seeing it.
4. The product should not be easy to find.
5. Your product must have a significant profit margin.