As good as an expensive, electric Oral-b; it still works well without using the 'on' button. I would definitely recommend this toothbrush as it provides a really good, effective clean. Don't hesitate, buy today!
I've been using these toothbrushes for years, the battery lasts for ages, well past the 3 months you have to use before renewing. I've stocked up now as I take one on holiday too.
Great for holidays or hospital stays. Not as bulky as a chargeable tooth brush so very convenient and as good as a chargeablel brush without having to recharge.