While having the second remote vibrate to let you know if the toy I on is useful, this sometimes is deceptive and the remote and toy can end up "out of sync".
The vibrator itself is very powerful, which some may like, but my partner found more jarring then stimulating, with the lowest setting being what we would consider mid to high on another vibe, meaning you can't play with build up very effectively.
The vibe type is very "buzzy" rather then rumble, so that is something to know when purchasing.