For the retail price and the fact this has many features (seriously works like a $100+ sonic toothbrush), anyone who purchases is getting a steal of a deal. Some complain that the toothbrush head is too small, more of a kids size toothbrush but my mouth isn't huge anyways, and the size isn't that bad. There's multiple settings from clean to polish to whiten etc. There's a built in timer to where the toothbrush automatically shuts off after two minutes of brushing your teeth! Every thirty seconds it will stop for one second to remind you to switch quadrants also! Also easy to clean after each brushing... Just pull the brush head off, rinse, wipe anything that needs to be wiped, wipe dry and set it back in the charging base! Highly recommend!