I used my Ohm recently on a 4 day trip. Carry weight was approx. 24lbs (close guess) and I did carry 3.6 liters of water on a semi-dry stretch.
The pack carried very well, with little, to no discomfort. I did have the hip-belt load stabilizer straps slide down off the hip-belt though.
Other than this, I really didn't have any issues, and like this pack, very much, except for the stabilizer strap issue and the 3/4" wide hip-belt webbing, which although felt and preformed well, I still don't really care for.
So, I did a mod to the hip-belt webbing, removing the yellow hip-belt pocket webbing and the stabilizer straps.
I then used 1.5" nylon webbing. First sewing the 3/4" stabilizer straps level to the top edge of the 1.5" hip-belt webbing. I sewed a loop in the stabilizer straps, to attach the hip-belt pockets too.
Next I sewed the 1.5" hip-belt webbing straps onto the hip-belt wings, set approx 1-1/2" back. I plan to use the old style contoured, dual pull 1-1/2" hip-belt buckle.
Its too early to tell, if these mods will be better or not. But for some reason, I just thought this would be better than the existing hip-belt, which may or may not turn out to be an improvement.
I did load the pack with 16lbs to test the Stabilizer straps, and they now do not, slide off the hip-belt.
Most will probably like the hip-belt just the way it is though.
Note: these issues may be exclusive for me personally, where other Ohm users may not find any merit with the "minor" issues that I've found.