Transit Custom disc brakes

[Finknottle]

Hi all, I'm thinking of ordering TRW 288mm brake discs for my 2016 Ford Transit Custom but have one hesitation. I have read on occasions that the discs can be 'difficult' to fit on some vehicles .
Has anybody had problems with these on the transit custom van. I'm using the original calipers.
My second choice would be Bosch.
Thanks in advance.