Has anyone any idea how my life style would differ if I was to sell up in Ireland and move to Poland?
On a lighter note, you would miss a decent pint of Guinness. :O)
On a more serious note, it really depends where you move to, as davidpeake says, “Krakow is good, as they is a large English speaking community, but it will be more expensive to live there,” but it's not my cup of tea. I prefer a quieter life and so I live with my Polish wife and daughter down in the southeastern part of Poland in Pulawy, which has a population of 45,000.
If you are single, then I suggest this is not an option for you, as there are only two English people that I know of here, and I presume with no Polish language going to an area like this will be extremely difficult for you.
You would be better off going to one of the larger cities or towns where there is a larger English speaking community, but I find that this has a double-edged sword, because you will not totally immerse yourself into Polish society; whether this is a good or bad thing is objective. Personally, I prefer the latter as if you want to live here long term you will have to accept a Polish way of life.
Regarding "lifestyle changes,” I think this is more down to the individual.
If you are the type of person that is open to accepting new ideas and ways of life then you shouldn't have many problems.
BUT! If you come here with preconceived ideas and habitual standards then forget it because you will be sorely disappointed. “Go with the flow,” are the watchwords here, and bucking against the system will only get you frustrated and disenchanted. Polish authorities have a certain way of working, which is usually three steps forward and six back, this is slowly changing for the good as the old office workers are being replaced by younger well-trained staff.
The life style here again is objective, as I find it a much more slower pace of life then the UK, and after working in London for 12 years, I find this a blessing. However, if you like a challenging and fast-paced life there are still lucrative business opportunities to explore if you are that way inclined.
To sum up, I have never regretted this move and I am here for the long-term, but my expectations and look on life are not the same as everyone else.
I guess as “the_falkster” said before, customs, traditions, your current lifestyle and expectations, and gathering information about your potential new home in Poland are all vital factors to consider in your move