Do you think client's knowledge and experience has a positive or negative effect on your ability to sell your service?

I don't think customer's knowladge and experiance should be effect on my servise because our knowladge and our way of explanation should be effect on our servise.

Customer Knowlede can help us to convience him on our product if we have sufficient knowledge on our product Vs Competitiors.

its better to have a client who has experience and knowledge about the product or service you are offering; it helps to sell better in a positive way and helps you as a sales person to learn from the experience.

1- Positive If they know the value of your product/service then it's way better for you.

2- Negative If they know the compettitors featuers then it will be hard to convince 

Customers are quite informed these days and it certainly helps in making a right sale.

Customers can understand the benefits and value for their money, thus encourages the sales person to make the sales pitch confidently.