I learned to river surf on an iSk8, switched to a Hydrus Montrose XL, and have moved to the Bomb Drop this summer. It's a super fun board, easy to pop-up on most waves once you dial-in your technique. I've surfed a few other boards since, soft-top and traditional boards, when I get back on the Bomb Drop I am always really impressed with how well it handles and how much fun it is. For reference, I am 6' & 170lbs surfing around Colorado. My wife loves it too!
I'd be super keen to get a hardboard or alternative construction with similar dimensions that has a bit more stiffness.