I have had one of these razors for years and can honestly say it is the best I have ever owned. I recently replaced the rotary blade unit after several years use. It was a good improvement, however the old blades still worked. All in all a very good product, not dear and should last you years.
Price paid for replacement cutting blades 'shaved' a lot off High St retailers and I get to keep my old but trusty Philips shaver. Ordered and delivered without any hassle.