512/128 is quite a bit superior to dial up. Is the line contended, and if so, what is the contention ratio?
Is the 1gb a combined upload/download allowance? Seems low. Actually, according to their website, it is 10gb, which is not bad.
€199 for set up-what exactly are you paying for?
€34.99 is pretty steep for just broadband.
Have you checked ClubMan's sticky to see if you have any other options? Kerry Broadband don't seem competitive at all (I guess they don't have to be if there is no competition ).