Life / Internet connections: fixed line (12 month contract) or mobile in Poland? [3]

Hi

Does anyone have any suggestions for an internet connection solution. I have an apartment in Gliwice, Poland, which I spend about 6 weeks a year in on holiday. I would really like to use the internet whilst I am there.

I am not sure which solution will be best, fixed line 12 month contract or mobile internet.

Can anyone advise?

Thank you