I have a cracked windscreen due to a stone chip.

The car was booked into RAC windscreens in Aberdeen to have a new one fitted through insurance. I have been advised not to take it there by someone in my work due to him having his screen misaligned and also his wipers were put on the wrong way round!

I have phoned the local dealer and they have quoted me £408.75 for having this done but my insurance will only pay up to £200. So instead of the £60 excess I would have to pay £208.75.

So I need to know if anyone has had a screen fitted at another dealer and what did they charge?
Or if anyone has had a new windscreen fitted by Autoglass or similar and how good was the job. Also should I insist on a genuine mini screen?