I print constantly and once it's leveled, it STAYS leveled. I boost the printing speed in the slicer by 100% and it has never caused an issue. A rock solid frame, while the typical Creality and Prusa printers always seem to have some sort of constant frame stability issues that this one will never have. It's really heavy as a result. I can print with literally almost any filament. But, of course if it's ABS and such, you'll need to either install sides and some kind of top to retain heat. Jams are extremely easy to clear. If there are any issues, it's this: the display is really basic (limited # of characters too) and you have to name the files accordingly. The big problem is the cooling fan for the main board. They use a cheap sleeve bearing fan for the motherboard and they get noisy quick, and wear out after a few days of use. I always keep a few of these around ... about a buck or two each. I'm looking for an alternative ... but that fan aside, it's been my "go to" printer for it's bullet-proof printing results. I own several printers, but if I could only have one ... it'd be this one for certain.

This is my second 3D printer and is a nice upgrade from the MP Select Mini (thought the Mini is still amazing).
I haven't had any issues with the printer, but it is definitely a project. What I found with 3D printing is that it is in many cases challenging to begin high-quality printing right out of the box with most printers. There will always be some work you have to do to optimize it and in my case, it was mostly trial and error. But once you dial in all of the settings, upgrade some parts, re-level the bed 5 times, it works like a charm.

Quick note, I'd very highly recommend getting motor dampeners for this printer. It makes a massive difference in machine noise.

I'd definitely get this printer again knowing what I know now.

THE ADAPTER DOESN'T HAVE A MICRODISK CARD

very good unit so far. A little touchy at first, until you get the hang of it. Ended up upgrading the hot end to a micro swiss all metal hot end to get better performance. Wow what a differance. It made a very nice printer into an amazing printer.

I have ruined 4 jobs now because the dial is too sensitive in some menus. While changing material, it keeps slipping and selecting CPE. And once you select the wrong material, you can't go back. You have to trash the job, and start over. But starting over means heating cycling two more times because the machine gets heater errors when it is restarted hot. And even when you change the material setting back to PLA, it still thinks it's on CPE for one more run.

My first 3D printer. Pretty good out of the box and easy to set up and start printing. With almost 1000 printing hours in, I can say this:
1. Capable of very high quality prints if you tend to it.
2. Nozzles wear fast. Every time I have print issues I end up replacing the nozzle and issues go away. Buy a bunch of replacement nozzles and consider them consumable.
3. The fans that come on the hot end and print cooler are crap. Mine started failing about 6 months in. Easy to replace, however.
4. Parts are easy to find. This unit is a rebranded Wanhao D6.
5. Monoprice warranty service is bad/non-existent. Be prepared to fix this unit on your own. Even if you manage to get warranty support, it will likely require sending the unit back at your own cost (it is heavy, shipping will be $$$). Luckily there is a robust community for these printers and they are fairly easy to fix.
6. Buy quality filament and you will not be disappointed.
7. Skip the software that comes with it and download Cura directly. Much better.

Overall a great way to start 3D printing. Are there better printers out there? Yes, for sure. But they are likely more expensive and/or more difficult to get running properly.

great durable printer. we use it in our classroom and it performs well

good resolution, relatively fast printing speeds and the huge bed make this printer one of the best i have ever used. but that doesn't mean its perfect, far from it. the nozzle wears down after a while and you have to replace it and there is an issue where it digs its nozzle into the print bed and just melts a hole through it.

This is a good, solid machine. All 3 axis are mounted in a robust configuration, so it is definitely designed to generate reliable prints. On the down side, the filament cooling fan duct is poorly designed, so the air flow is not directed to the proper place. Easy to print a new one and replace the factory one. The other problem I noticed is when trying to print large objects (around 190mm in X and Y); the X axis will randomly skip steps on the far end, resulting in a defective print. Not sure how to solve that yet.
My printer came with a loose screw in the box... I have not been able to figure out where it belongs, if in fact it belongs to this machine.
Overall, good machine, but still far from perfect.

When it arrived, I had it set up and running the first print in about 30mins. And most of that time was un-boxing it. It came exactly as shown. The only adjusting I had to do was to level the bed and install the filament. I'm new to 3D printing so this was setup was very easy. I have other friends with more expensive 3D printers and they were impressed at the low maintenance and print quality of this machine. I'm very happy with this purchase! The only Negative I have isn't even with the printer its self. The modded Cura slicing software it came with on the memory card is greatly outdated and settings were lacking. Just grab you a Free Updated version of Cura, and find some custom settings in the community that work well with this printer because Cura doesn't come with this printer by default. But other then the software it is a very great beginner printer!