My only advice would be if you have to go down the repair route don't go to some cheap company found on google, they probably use the ebay kits themselves and the result on my windscreen - while looking okay at first to seal a chip - has actually proven to be sh*t and the resulting raised spot caused my wiper blades to die early too. I wish I'd just paid the bit extra for Autoglass instead.
I wouldn't worry about that, i can get you a pair of wiper blades for under 2 quid, so it won't matter if they fail fast... They sound proper sh*t though on your screen