Wheels 1000. Ceed SW CD

Moin people, I hope I will be driving a Ceed SW MJ20 soon and the anticipation is already huge! Unfortunately, I don’t really know all about the rims/tire theme, but would like to buy him some new punches. With my 9 year old i30 SW this had always made a big difference! – Alu rims to winter bikes…. With the winter tires (steel rim) he looked really packy and with the aluminums I am certainly 5-6 times from people on the tank all the time I have now chosen the TA Dark 18″ with 45 ET by Dezent and according to the configtator, all this should fit in such a way and be non-intrusive. I’m just a little unsure, since there are always differences with 5 different rims/tire configurators, although this should be technically all the same. Would I be happy if one could tell me if this combination is so ok. Or rather 17″, because otherwise comfort is lost? r, that then always some effect is lost and the Ceed is already quite high anyway, although the vehicle itself is relatively low. Thank you.