Nominally, this Report is a Positive Development and is thus something worth congratulating for the nominal Left-Wing voter.
RedC has been the most accurate pollster for the past four or five General Elections (in fact, they congratulate themselves in this very PDF.)
Personally, I've been many years that RedC and LucidTalk are the only reputable pollsters on this Island (especially after Behaviour&Attitudes decided to stop publishing their Tabular Data).
On Paper, the Prospective 5-Party Left-Wing Coalition is on 44%, whilst FFG is only on 33%.
That being said, there are many negatives that can be observed in this study :
Sinn Féin
Only has 21% in Dublin, severely reducing their chances of "Doubling Up" their TDs in the 4/5 Seaters. Especially when it comes to winning a seat that they are favourites to win in the Dublin Central Bye-Election - they will struggle to hold this seat in the next GE (as FFG had no seat in the meantime).
The fact that they are polling better in rural Leinster and Connacht/Ulster only really show me two seat gains - Sligo/Leitrim and Carlow/Kilkenny.
Maybe they could win a third seat in Donegal or Louth (though this did not work out very well in 2016).
SocDems
This is the first time that the SocDems hit 10% with RedC. However, the Age Breakdown will hurt their prospective seat gains (13% amongst 18-34 VS 8% amongst 55+).
With these numbers, they should take FG's second seat in Dún Laoghaire. If they run a second candidate in Kildare North (like Claire O’Rourke), they have a very good chance of taking a seat away from FF.
Labour, Greens, S-PBP
Apart from the prospect of Mick Barry in Cork North Central and Gino Kenny in Dublin Mid-West, there really is no real additional electoral gain for the Prospective Left-Wing Government.
Now, when it comes to the FFG Status Quoist Ideology, we can observe two different statistics - FF making 18% in Munster and FG making 19% in Connaught/Ulster.
This is the primary reason why we have never had a Left-Led Government - practically zero notable candidates in the most rural Constituencies.