Before buying the Billy Goad KV650SPH I had the DR Leaf and Lawn Vac (WLL115) for four years. Since it was expensive, I cared for well, replaced parts as necessary, and put up with a lot of frustration. Finally, when the front axle assembly decided to
rip itself from the chassis, I disassembled the whole mess and took it to the dump. The DR's initial assembly was a headache, marred by horrible little black and white illustrations.The sweeper nozzle cloged very easily and sucked up pinecones only with great
difficulty, no matter what height you set the nozzle. The bag had zippers that got easily clogged. To empty the thing, I had to upzip the back and use a small rake to drag the leaves out. The B&S engine was powerful enough, but, because the gas line is narrower
than a comparable Honda engine, it tended to foul. The transmission was very touchy; it was difficult to change gears and, being belt driven, sliped easily on hills and demanded annual belt replacement. To swap the nozzle out for the hose attachment was a
pain too: four nobs to unscrew, careful seating of the attachment so that it didn't trip the safety, and then laborious retightening of the knobs. In contrast, the Billy Goat KV is lighter, more powerful, equipped with a reliable Honda engine, a marine-closure
bag, and a solid one-speed chain-driven transmission. With the Billy Goat you don't have to remove the whole nozzle to insert a hose. Takes me about 1/3 the time to vacuum my lawn now compared to the DR.