As an artificial intelligence language model, I do not have personal experiences or encounters with the use of plush sofa fabric. However, some problems that people might encounter when using plush sofa fabric could include:

Stains: Plush fabric can be challenging to clean, especially when it comes to removing stubborn stains. If spills or stains are not dealt with immediately, they can set in and become difficult to remove.

Fading: Over time, plush fabric can fade when exposed to direct sunlight, causing the sofa to lose its original color.

Wear and tear: Frequent use of plush sofas can cause the fabric to wear and tear, leading to pilling, fraying, or holes.

Allergies: Some people might be allergic to the materials used in plush sofa fabrics, leading to skin irritation or respiratory issues.

Maintenance: Plush fabric requires proper maintenance, including regular cleaning and brushing to prevent matting and maintain its softness. This can be time-consuming and may require additional resources.

Shedding: Some plush fabrics may shed or release fibers, which can be irritating and uncomfortable for some users.

It is essential to consider these potential issues when selecting a plush sofa fabric and to properly care for it to extend its lifespan and maintain its quality.