I shopped dust collectors pretty extensively over many months and nothing compared to the build and specs of the G0441. After running my Harbor Freight pretty hard for over a year I was worried the 3hp Grizzly still wouldn't be enough for my small 600sq feet shop. Trusting my past purchases with Grizzly I pulled the trigger. 5 days later it arrived to my door step!
Two long nights and a 3 full days later the DC was set up and I had fresh, 6" lines neatly ran through my shop. Yet again I'm blown away with another Grizzly product. Even with 2 other blast gates open it's still plenty powerful to work well on my machines. Then with only 1 and another 1/2 open the suction is so powerful you almost can't see the dust getting sucked away. Especially the router table and drill press.
Installation was long and somewhat tedious but that's why we're into this whole woodworking thing in the first place. I mounted mine to the wall which saved me almost a foot of space on both ends by not using or paying for the optional stand. If I had a ton of space I'd have almost certainly picked on up. Lifting the 347lb motor to 9' up and gently lowering it onto 3 massive, pre-threaded lag screws with washers dangling around them was an insanely tricky and scary feat. I had a good friend who's also tall and pretty strong help me. We got it done but highly suggest 3 strong men mount the motor if wall mounting. Chance of death is extremely high if it happened to land on any vital part of your body.
The construction and design of the unit is stunningly simple, strong, and well thought out. Every connection junction has included foam tape to seal. The massive steel cyclone is HUGE! Not only does it sound like there's a tornado in my shop I'd bet it'd be the only thing standing if I was hit by one. The remote works really well but it's made with cheap, brittle, plastic so I'm thinking of taping it up or adding some rubber in preparation for the inevitable drop.
Overall this thing is a beast. My 600sq foot shop is well covered. The noise is more intense than the Harbor Freight but only a tad louder. I have duct running to a table saw, miter saw, bandsaw, drill press, router table, jointer, planer, and a sander. Each with their own blast gate and 6" duct running pretty close. I used the basic steel ducting from Lowes, taped the seams really well, avoided hard 90's and thought out my duct plan. The suction is more powerful than necessary which means it's perfect!