The drawbacks of this product are:
It doesn't necessarily fit against your body in a comfortable manner, the tip faces away from you, curving away and out from you, if you're using the suction, but the tip is the part that vibrates.
I personally like having them both separate, as I'm not one for penetration, but if you're wanting to use both vibration and suction comfortably, this isn't it.
This product stood out from the rest because:
This is the first toy I've used to make me cum without anything else needing to have been done.