Voters have a simple choice- it's 'as easy as 1, 2, 3'
It produces a broadly proportional outcome
It gives voters a wide choice of candidates. Their second and subsequent choices are taken into consideration in the counting
As there are six representatives per constituency, each voter has a choice of those to represent them and usually they find themselves represented by someone from the party they supported
Drawbacks of the voting system
Calculating the result is very complex and takes a long time
It is more likely to result in minority or coalition government that could be unstable
It can help candidates with extremist views to be elected
With six representatives per constituency, the lines of accountability are not clear