I'd say that's the nicest-looking bar setup I've seen for OEM style (no protruding bar ends). They aren't rear as tall as the OEM and other options I've seen.
Do those bars say the load capacity? I'd imagine they're fine for roof boxes and the like, but probably not strong enough for roof top tents and such. Curious if they have a rating.
Make sure you use stainless steel hardware (bolts and washers). It's also a good idea to use the security style bolts (they have a pin in the center so you need a special tool to install them), as that makes it harder for a thief to steal the whole rack setup if you find yourself parked at a hotel in an unknown area, have to leave the car somewhere, etc. Yakima includes those bolts in their kit, so you could probably source them from etrailer or Yakima directly. Just make sure to reference the Yakima 'landing pad' kit that works with this car (or Jeep Compass too).
If you're talking about the Heka kit I put on, the stated load capacity is 165lb. I don't know whether that's each or combined, but I would say that they are sturdier than the OEM rails our Tahoe had. I don't know what kind of load rating a roof top tent needs, but most of the rails I've ever seen would probably not hold more than the 165, so maybe you need the big square rails for tents...?
As far as the stainless and security bolts, it's not a big concern for me because I don't plan on ever using them on any kind of extended basis, but if I were, I would probably get stainless bolts and paint them black, even though I'm probably the only one tall enough to see them
PS, I also like that the rails have a 1 inch wide rubber strip running along the top of the rails, which seems like it will be useful for keeping things from slipping...