They look 10x better and have BETTER choice of tires including ones that are more efficient than the 18”. The OEM 19” tires are not as efficient as the the OEM 18”. There is nothing wrong with 19” rims.
My Summer average wh/mi was 230 on a Stealth AWD with 19” OEM wheels an Pirelli P7+ Tires.
19” generally do not have bent rim issues like the 20”