I can only coment as i find but i've done business with sidsoft 3-4 times and they checked my laptop over and told me it needed a new screen - no fee
second time i went in for anti virus and they said you'd be just as well to get avg for nowt - no fee and they had norton anti virus on the shelf at the time
third time went in for some screen wipes 2.99 and they wiped well
Each to there own and it all depends which computer shop your on about