I have used the Up! Mini printer at my work. I've set up 3 of them that were all bought months apart and I was literally able to pull them out of the box, remove the styrofoam, and start printing with them immediately after plugging them in. It was awesome. There's also an unboxing video on youtube that's 6-7 minutes long where they take it out of the box and start printing in a single continuous take (that's what sold them to my boss).
They also have a neat approach to the bed platform which is essentially a PCB with holes and a solder mask. The rafting plastic goes into the holes a bit and helps a ton with preventing curling. The only downside with that is that not all of the plastic comes out of the holes when you peel it off, but they poke out easily or you can get away with leaving it in there for quite a while.
Also notable is that the printer has an internal micro sd card, so once you send the file to the printer you can unplug the computer and it will keep printing (really nice for us so one laptop can switch between the different printers).
The obvious drawback is the smaller print size. IIRC it's 4.5"x4.5"x4" or similar. I view this as a direct trade-off: smaller area for excellent software/firmware. I bought a SD Press for myself because I got the first day $350 pricing (really $410 after shipping), but I can't get it to correctly home the y axis without holding the cable out of the way, and when I went to print it was about an inch off the bed. But 8x8x8" is a lot bigger, and if the software gets sorted it will be worth it.
Oh, one last neat-o thing they did with the Up! mini-- the extrider head assembly is held on with neodymium magnets, so if the spool gets jammed (happened to us once, my fault for not having it on the holder correctly), the stepper motor pulls the head off instead of pulling the entire x/y axis up from the tension until the filament or printer breaks.
I don't like it when I hear people say that all printers under $1k have lots of setup and that you have to expect it, because it's not true for the up mini. However, it's definitely settling for a smaller build area printer if you get one.