Anyone used FHC dentist in Dublin?

I need to get a crown done, my Irish dentist is costing 650 euro. I have heard of the Polish FHC dentist inDublin, they said they can do it for 300euro.

Has anyone here used them?

The other option is to get it done in Poland next time I'am there, but I would like to get it done this week.

You was talking about this Family Health Centre?
fhc.ie/en/specialists_main.html

All of the specialists from there comes from Poland.
I also wonder if it is so much cheaper as you have said? Maybe you know already the anwer.

But of course in Poland must be still way more affordable than in Ireland? (although maybe not for Poles who lives on Poland's wages)