I had a Infinity QX56 that had Hydralic Body Control suspension system... It worked amazingly well as we could take that beast through on ramps at nearly 50MPH, however it did become a repair nightmare. There we fluid containers that had to be pressurized perfectly, one leaked... system needed drained. Dealer was quoting nearly $5K to fix. I ended up buying a used replacement tank from a junk yard and had my local mechanic pressurize it... sold it shortly after as was worried I was driving a ticking time bomb. Rivian system seems similiar... so there is always risk that comes with complexity. Hopefully a good warranty and solid financials in coming years.