I've not used these yet - they were bought as back-up replacements for original Braun heads, but at this great price could not be missed. But the proof of the pudding will be when they're finally put into use.
Very pleased with this new Braun toothbrush. I'd been contemplating other, more expensive models, but when I read reviews that the 1000 did just as much for the great price of £29.99 I decided on this one, and so far I've not been disappointed. If it lasts as my old Braun which finally died after after 7 years, I'll be delighted. Highly recommended.