Considering the size it’s a lot more powerful than I expected, either that or I’m more sensitive than I realised. Suffice to say when I used it with a love egg while experimenting with forced O’s, it made me squirt… soooo make of that what you will. Only downside is that you can’t flick between settings, just cycle through them, and one setting no longer works anymore – not sure if it’s a loose connection or if it’s something to do with the diaphragm that makes the sucking feeling. Otherwise, an excellent alternative to a pricey brand version and size is easier to take places.