Agree without reservation.
Jane Tennyson is one of the all time great TV characters.
A worthy companion series (with a male protagonist) is Cracker with Robbie Coltrane.
When- not if- you do, be sure to watch them in sequence.
Although the stories are standalone, the character development/interaction is linear and the impact of the series (particularly the second series) is intensified by knowing all the backstories.
The lead story of the second series, To Be A Somebody, is one of the most harrowing shows ever on TV.