Positives: Vinyl is probably the most inexpensive siding out there. It is durable and can be installed over existing cladding. Its quick to install, comes in almost any color, and can copy wood siding with a slightly higher material cost.
Negatives: The biggest negative of vinyl siding is that most houses in North America have it. If you want to differentiate your home from others, vinyl is not the choice for you. It can however, be subject to build up of dirt and debris on the exterior face of this material. Therefore, regular washing is required with this product.