It's very difficult to understand what ptsb is actually offering. You should apply for it and get the offer in writing.
What will your Loan to Value be?
What is the price of the house you are buying?
As I understand it, you are entitled to
1) a tracker porter rate of ECB +2.1% on €220k over 20 years
+2) €195k at their new business rates.
No matter where you are on the property ladder we have a mortgage rate that will suit you. View our up to date mortgage interest rates.
They have a 4 year rate of 2.25% but they don't give cash back on that. So you could fix the €195k and get no cash back
Or they have a 3 year rate at 2.55% with cash back of 2%.
The problem is that you would be stuck with permanent tsb.
ECB +2.1% is worth something. But I am not sure how much it is worth.
But permanent tsb exploit their existing customers with very high rates, so you would have to switch the lot to get a decent rate.