The vibrations on the toy and the little air hole are what I feel are some of the best qualities this product has to offer. If you were to cover the air hole, it will increase the amount of suction that the users feels, so depending on the amount of pressure you place on the air hole it will give you different amounts of suction. The feel of the product was very pleasing. Inside, the canals are lined with bumps and ridges to help stimulate the user. I would recommend water-based lube and not a lot of it for this toy. The material of the toy is silicone-based, it's easy to clean; use soap and water, and the toy does come apart. The silicone sleeve does come out for the cleaning process. The toy is very travel-friendly. I would say it can be used for couples play or solo play, that really depends on how you like to play.