Philips Sonicare DiamondClean Prestige 9900 Rechargeable Electric Toothbrush with SenseIQ, Champagne HX9990/11

[This review was collected as part of a promotion.] It's very effective in cleaning my teeth, i like to use it on the high speed setting, the way it vibrates provides a feeling of cleanliness, the app is pretty amazing a lot of options, charts and details on the brushing experience and provides details on the spots i missed cleaning well. The brush cover is a very simple yet important part of the brush. The travel case seems very practical and slim however i didn't get a chance to use it yet. What i didn't like: 1-there is a gap between the brush head and the body, i tried to push it deeper but it didn't work( image attached). 2- The price: yes the device has all the options that i might think i need but the price is too high, if there is no clear medical need i won't pay this amount.