I had one. Was a great car - capable of munching up many a mile in supreme comfort.
In the just over the year of ownership I had it for, it had the Tensioner pulley replaced twice as they're very susceptible to them going.
The usual worry is the DMF going as well as the injectors. If they go it's £600 > £1000 a pop for either but it's a lottery. Mine seemed fine.
Easily uprated with a custom map or just a box from
www.tuning-diesels.co.uk. Mine made 177bhp / 355lbft on a rolling road day from here and featured in Performance Ford.
Best go for a test drive and see if you like the power delivery. It's a bit "wobbly" handling wise (but excellent comfort as a compromise) but lowering springs tighten things up no end apparently.