Arrived next day, they didn't claim that it would, but it did. Also Philips web site didn't have it (obsolete?) so handy to find that it was in stock. Noticeably better performance than the previous blunt ones! Seems expensive, but no more so than elsewhere, unless you go unbranded, which I wouldn't.
Genuine article, delivered within the time specified.
Identified easily the website the exact replacement shaver heads I needed and they arrived in perfect condition very quickly.