I initially had some serious quality problems with my mill. I think it was kind of a fluke, but the down-feed transmission was seriously flawed in its manufacture and assembly, causing some damage to the internal parts when I first plugged the mill in and attempted to give the power down-feed feature a dry run, which rendered my brand-new mill completely inoperable. It took almost two months of working with the Grizzly tech support people to get the issues resolved. But resolve them they did! The Grizzly customer service and tech support staff are very good at what they do, and they eventually got me the parts I needed to get the mill up and running.
And run it does! Every day. This mill is stable and heavy and very precise in its movements. The 3-horsepower motor has more than enough grunt to do any job you'd do on a mill like this. And it's single phase, which I think is a real advantage. The 49" table is only 7" longer than a standard 42" table, but it seems like so much more than that. I have enough room to set up other fixtures like a rotary table or dividing head without having to remove my vise. Power feed on the table works perfectly and can be dialed down to almost a standstill with plenty of torque, if you have need of a feed rate that slow. The design, being a clone of a Bridgeport J-head, is solid and enduring and well developed, so long as they're assembled correctly. All of the advantages of that design apply equally to this machine.
The DRO is almost a mandatory accessory, in my opinion. This one is the same model as the one on my lathe, and is very accurate and repeatable. I have learned to trust it far more than the handwheel graduations. I adjusted the precision down from millionths(!) to show only ten-thousandths. Works very good, but Grizzly needs to get someone who speaks English to re-write a true English version of the manual. Seems like it's been written in English by a Chinese editor who doesn't speak English very well.
My mill is actually very well finished, with decent paint and chrome knobs, handwheels and levers. A nice touch. Even with the initial trouble, I consider this a very good buy and an asset to my little shop.