I just purchased my 2019 GLC 300 4MATIC Premium SUV and I love everything about it. It’s my 20th overall vehicle and first luxury vehicle. There are a few things I wanted to see if other members know much about. I’ve already decided I’ll be taking my car to a certified MB service center for A/B services but I was looking at lower cost options for other services including alignments, tire rotations, and wiper replacements. Has anyone else switched out their run-flats for conventional tires? Does it matter where I have alignments/tire rotations & balances done? Is there anything special about changing the wiper blades? I ask because the price of Perelli run-flats is pretty steep, I can purchase a lifetime 4 wheel alignment from Firestone for the same cost as a single alignment done at my local MB service center, and $74.95 seems RIDICULOUS for a wiper blade installation when I can purchase Bosch brand wipers for around $30 and do it myself. Thanks in advance for replies!