I go to the dentist annually, brush twice daily and floss 3 or 4 times a week, but man oh man is this electric toothbrush a whole new world…my teeth feel dentist clean each time. By no means was my mouth poorly taken care of, but it feels in a different world now.
If you can, get one ASAP.
I’ve never made a mess with mine - I have a waterpik which I can use with my mouth closed around it like when I brush my teeth.
But I have a big old cake hole to boot, so YMMV.