"This car is amazing. Mine is just a bone-stock, factory-made SL500, but it feels and looks like a million bucks. I have been daily driving mine since I bought it, and though it costs more to maintain, it's totally worth it. This is a $100,000 car, and the build quality and performance reflects the original MSRP.
Yes, the hydraulic suspension system has some parts that wear out, but once you get them fixed, the system works way better than any standard coil-over suspension. If your'e having issues, get the accumulators replaced, get the engine mounts replaced, get the valve blocks rebuilt, and sort out any other suspension component issues (control arm bushings, etc...), and it will drive like new for years.
I love the way the hard-top convertible roof folds into the trunk. I love the way the trunk is still useable even with the top down. I love the rumble of the V8 engine. I love that the gas mileage is still pretty good, even though the car has a ton of power. I love the way the interior feels. I love the sound system. I love the seat heaters. I love the way the car handles. I literally love everything about this car, and the somewhat higher maintenance costs are 100% absolutely worth it.
Be careful with it during your daily driving, and it will be ready to perform when you really need to push it. I am pretty careful with mine during normal use, and have not had any issues since I bought it and remedied the deferred maintenance from the previous owner.
I even drove mine from Southern California to Northern California when I moved, and was a little worried - no need though, the car made it there without a single hiccup, and has been performing flawlessly ever since. It really got hammered by some of those potholes too."