If you just want to record programmes directly from live TV to a DVD disc, this could be the machine for you. The instruction manual could be better, but I nevertheless found the Toshiba DR20 to be easy to set up for basic use. Scanning Freeview channels and recording on to a DVD is straightforward.
My problem was persuading the Toshiba to recognise the existence of my Humax PVR, so that I could copy programmes from the hard drive of the PVR on to DVD. Putting this right involved juggling the menus of the TV, the PVR and the DVD recorder, with their three separate remote controls, and three menu systems. I was convinced that changing one of the settings on one of the machines would get everything working, but I could not tell which one was causing the problem.
In desperation, I spent half an hour on the phone to Toshiba technical support. At first the young man I spoke to told me that the Toshiba DR20 couldn't do what I wanted, though the manual explicitly said that it was possible. He then said that I would have to swap the SCART leads over at the back of the Toshiba every time I wanted to transfer a PVR recording to DVD. When I said that this was unlikely to be the best solution, he told me that there would be no point in contacting technical support again because nobody there would be able to "help" me further.
After a bit more juggling, I managed to make everything work as it should simply by changing a setting on the Toshiba's Input Select menu. I now have a DVD recorder that does exactly what I want, but it took several hours of frustration to make it happen, with no help at all from Toshiba.
Conclusion: good machine, though for anything more than basic use you might need a degree of perseverance (or more knowledge than I have!) to set it up.
UPDATE 26 November 2011: This machine worked well until it suddenly died in mid-recording, two weeks after its one-year guarantee ended. Toshiba suggested I try changing the fuse, otherwise it will be treated as a "chargeable repair", being out of warranty. I've changed the fuse, but the machine is still dead.
UPDATE 2 June 2012: I am still using my Toshiba (repaired privately, not by Toshiba). I really wanted to ditch my old PVR and get Virgin Tivo, but I hesitated over it for a long time because so much has been written about the inability to make DVDs in conjunction with a Tivo box. I took the plunge last week. I can now make DVDs on the Toshiba using Tivo as the source, either from a live programme, or from a previously-recorded programme, or now (new, courtesey of Tivo) from an "on demand" programme (i-Player or catch-up on other channels). I still can't watch channel A while making a DVD of something that's on channel B, but I never could do that anyway, so I'm not complaining. All very satisfactory.