I just received this printer a day ago. I set it up, which was about the easiest setup I've seen for a creality printer, and started printing. I'm amazed at the speed I get from a bed slinger! I started by printing a Benchy. 20 minutes (!) later I had a very decent quality benchy in my hands. And this was with a standard PLA filament.
Enough play, time to put this thing to work. Over the next day I ran another 12 prints. Only one failure out of those, and a quick bed clean with alcohol and I solved that problem. (I started printing out of the box and didn't even clean the bed first) Very consistent results. I've seen mixed reviews on this printer, and I was a bit worried, but i can tell you that there is nothing to worry about! 300mm/s printing with good quality walls and reliable output. This now qualifies as the fastest of my 9 printers. I think this is an excellent choice for the money and also would be a great printer for a beginner as there is almost no tinkering that you need to do to get good results. The default settings work great.