So today I am finishing up a job with the Robo that took... a lot. We had 65+ models to print, each roughly an hour and a half. Started last Wed. evening and will finish up tomorrow printing (painting adds a bit, but still controllable). Out of all the prints I have had two that fell down and both look to me like oiler failures (as in -- oops, I forgot to add a few drops over the last dozen prints). Other wise, outstanding quality and done at full-speed. Each model was slightly different (they were customized to have raised names on them). I am extremely happy with how well the Robo has performed in this. I have never put it through this long of a cycle of nearly continuous (about 20 hours a day) printing before and it held up like a champ. I periodically lubricated the rods, but other than that just fed it filament. So, yes, you really can get a lot of good work out of this printer if you get it setup and tuned correctly.