GSF car parts are ok if all other supliers are out of stock so your desperate and your local GSF store has it in. Do not be fooled by the amazing looking discounts they send out every month. There was 65% online discount off all parts this Christmas yet the prices before applying the offer were 70-75% more expensive than all other parts retailers for example diesel filter @Euro car parts £12.00 VS GSF £38 then 65% off = £13.30... the discounts are just a gimmic to look good. I do use them from time to time and do get a good service in store but I rated 3 for overall experience in store and online but it’s the stupid offers that makes me lower the score.