I have had mixed feelings about this Robox 3D printer from CEL. I've run the gamut from the sort of delight a five year old feels at seeing his dream toy under the Christmas tree to the inarticulate rage that makes you want to take a baseball to the machine because the sound of it breaking would at least indicate some forward progress. I've finally settled for cautious joy now that it's working properly and I am actually creating things - real, tangible things! And some of those things are cool as heck.The photos I'm including with this review are of a tiny Texas emblem that took about 7 minutes in draft mode and is slightly larger than a quarter - easy peasy. The Mayan style pyramid was a bit bigger, lots more detailed and took about 40 minutes in the normal mode. I have included a photo of the inside of the pyramid mid-print to show the honeycomb construction as the layers were laid down. The big boy though is the detail model of Angkor Wat. This was quite a large file and took over 12 hours from start to finish in normal mode - fine mode would have rendered much more detail in several areas, but would also have doubled the print time. I have also included a photo of the construction process on the Angkor Wat model with the Robox print head in action and it's light on - this was about 5 hours into the project. And a close up of the final result. You can see the little curved tops of the walls and the tiny curved openings in the entry gate. (all of these templates came from Thingiverse by the way - that place is awesome)The Robox machine itself...well it's got a reasonable size footprint for home use. About the size of a counter top microwave oven or a an all in one printer. But you do need some space around it for a couple of reasons. First you need to get in and out of it to change or load your filament rolls easily and the door raises up and back over the top of the machine, so you need a bit of top clearance there. Secondly this machine does generate heat and it needs free airflow. It never got hot to the touch or underneath on my table - not even during the marathon 12 hours for the Angkor Wat print. The power cord and the USB cord are both located in the back and have more than enough length to reach both a wall outlet and your laptop - my laptop is about four foot from the Robox. You don't need to keep the computer connected to the printer once your project is transferred to the Robox, but I find that if I have trouble with a print (clogging or not sticking etc) then I want to immediately have access to the software. There is no way to stop or pause a print directly from the machine unless you power it off entirely.The tips others have given about preheating the print bed and the nozzles, purging the nozzles before and after each project and doing the alignments are dead on accurate. Don't skip these steps or your projects will be garbage. The software is pretty thorough and it allows you to customize your prints, designs and detail level - I have learned that I need to learn A LOT more about design etc before I start fiddling with some of the settings. (instead of a nice horse statue, I got a big blob of filament with a lovely horse backside) However, for the beginner, this is pretty much a plug and play machine. Stop and read that line again and let it sink in. ***** The average person with a bit of techie inclination can plug in the Robox, connect it to a good laptop, download a design for free and literally make a thing in their living room that did not physically exist the day before. ****Now for the bad. My reason for the rage and ultimately, the one star deduction. I am on my second unit in exactly thirty days. My first one arrived with an un-level gantry, an X axis that wouldn't move, the fine nozzle would spit out filament randomly all over the print bed and the printer head would lock up and scrape over the print bed repeatedly until it etched grooves into the metal base. That was all in the first two days. I did all the trouble shooting things I could find online and in the book and reached out to CEL directly for help. I would get one problem fixed and a new one would literally pop up minutes later. Additionally, the software rebooted three times trying to update itself when it was actually current - not a big deal, but it sent my older laptop into a fit ( five year old laptop running Windows 7). Once that was settled, I have had no more drama with the software at all. CEL has a problem with communication in a timely fashion with customer service (as noted by other reviewers already) and it took ten days to come to a solution. However, they DID respond and they did replace the malfunctioning machine with one that works correctly. That may just be a result of growing pains - this company is based in Great Britain and production is in Asia and they are new to sales in the US, so distribution etc may still need time to settle in. I really waffled between the four and five star rating, but decided the four was fair since I'm not the only who has had these same problems. I do think this is a very good 3D printer and one that I don't feel bad letting friends test out when they visit so they can see it in action, nor will I hesitate to recommend it to other folks.************* UPDATE DECEMBER 19, 2015 *****************I have been using this printer on a regular basis, perhaps 2 or 3 times a week on average and I still love it. I printed Christmas ornaments for all our friends and a ton of sci-fi objects as gifts as well. (The Tardis, a tiny Millennium Falcon, Serenity from Firefly of course) I haven't had a repeat of the problems mentioned in the beginning with the first machine. Additionally, I have gotten a new laptop running Windows 10 and the software works exactly as it should.