Re: 159 Reliable? Honestly....
We have had 4 Alfa's over the last 18 years(2 Lancia's & a Fiat as well)
A 33 16v permenant4 ,146 1.8ts ,156 1.8ts & in April this year got a new 159 1.9 jts.
Just back of holiday & have put 2K miles on it in two weeks, having been over to France, Belgium, Germany & Holland. The car never missed a beat. We've done 4,500 miles in total so far & no complaints.
I read a lot of people saying that mpg is poor & power not that great. Having driven on the autobahn's/motorways in France & Germany as we have in the past on holiday with all our Alfa's before this one. I found mpg & power to be on par with the 156 1.8 ts that we traded in back in April.
However the car is more refined than the 156 & more than once was able to show a clean pair of heals to the BMW, Audi & Merc's out there.
Have never been a diesel man (only the works van) Still I would say go for it and enjoy.