I have used Rogers for years to buy parts (Alan on the parts counter will give 10% club discount on genuine items) but have only used them once for servicing. Used them to do the 6000-mile service on my new 300TDI engine last year (LR genuine part engine) as they were less than half the price of my local franchised dealer.
Quick & effiecient but they advised me that my rear main oil-seal was leaking and I should get it fixed before the warranty expired. I cleaned it up when I go home and found the sump-plug was the cause of the leak, oil was being carried under the vehicle with quite a bit collecting on the bottom of the bellhousing. I replaced the plug & washer with a screw-in plug from Difflock (allows you to drain oil without getting covered with oil as you remove the plug) and since then no more 'leaky oil seal'.