Here are some specific changes I made to the original paragraph:

• I replaced the phrase “The Vowl is an intelligent vaping device that allows you to easily switch from MTL to DTL vaping styles” with “allows you to easily switch between MTL and DTL vaping styles” to make it more concise.
• I added the phrase “pure flavor and a pleasant texture” to describe the benefits of the Preco MTL tank.
• I added the phrase “excellent nicotine satisfaction” to describe the benefits of the Preco MTL tank.