NOTE: First time using a chipper so unsure how usability/quality is across the board. Unit seems to be very well built. All parts that had to be assembled are heavy and made of medium gauge steel (aluminum?) -- thick and sturdy enough but not too heavy to make the equipment inoperable. Definitely not flimsy at all. Wheels are nicely sized and for 140-150lbs it's very easy to maneuver. Engine started right up after adding oil and fuel. The inside gas tank/filter does not have an apparent red-line fill mark that the instruction manual is adamant that you never cross -- can't not cross something that isn't there. Speaking of the instructions, assembly was somewhat difficult as all nuts/bolts and lumped together in one bag and not individually labeled. The instructions don't specify sizes so I ended up back-tracking taking some out from the hopper assembly as they were meant for another attachment (same thread but different heads). The instructions also say not to run the engine at max speed until 3hrs break-in -- well you aren't going to get much done not running it on max. The cutting isn't smooth at all (not sure if its supposed to be) and limbs get sucked in both locations violently and aggressively. The hopper is 1/2" max and I'd definitely keep branches anywhere close to there away, as it really only seems good for loose debris and brush. Smaller green branches don't really fit into the chute either so I'm not really sure how to handle those. Very long, thin, flimsy branches don't feed well into the chute and have to be forced in which I find strange. I haven't tried anything over about 1.5" and it eats those with ease, but only if they are straight. Anything with a bend or curve gets jammed up and has to be pulled out, snapped, and shoved back in. That is a bit annoying. Otherwise this thing does what it's supposed to do and seems to do it well. Engine runs smooth and I filled up the mulch bag in about an hour or so. We'll see over time if it's a good ROI product.