I was pleasantly surprised when I received this product. Packaging was very discreet and even after opening the box the case was also discreet. First the suction is more then sufficient, it was just as good as the 150$ manual pump that I had purchased in the past. To use the pump is pretty simple a little lube turn it on and insert, once you are comfortable you can start increasing the suction until you get to a comfortable level. One thing I hated about the manual pump always had to add vacuum at some point. The rings are an added bonus, once you get done slip the ring off the base and it holds the results for an extended period. Overall I would highly recommend this product, especially over a manual pump.