Yes I would..... peace of mind! Maybe I am just old fashioned... But in terms of oil and tires... only reputable brands with a long history of business.
There are very good tires from not so well known tires like there is oil that meets Audi requirements but I personally prefer oil from Mobil, Castrol, Shell, etc than a white brand that meets specs...
Maybe this is somethinf that comes from my years of 2 stroke go karting where a different oil made wuite a difference... you should see the piston and cilinders... and all came from an homologated list... but there where lots of differences between them...
I am pretty sure that if the oil meets Audi specs it will be OK but it is a personal opinion/choice... that is all.
Pedro