I purchased my J1 on Kickstarter
I purchased my J1 on Kickstarter and waited over a year for delivery. I don't say that as a bad thing, just that it raised my anticipation considerably. I have not been disappointed. I have been very happy with the J1, now a J1S with the upgrade of the fan. It has been a solid performer for me in the year and a half that I have had it. I had a couple of minor things in that time but nothing that I wasn't able to resolve on my own pretty quickly. All firmware updates have gone smoothly for me. I haven't really put the printer through the wringer so to speak but it continues to perform well for me. I made a couple of minor changes to the enclosure that have enhanced the printer for me. One was from the forum, I mmad a small hole in the side panel so that I could adjust the belt without removing the panel. The other is just a preference thing on my part, I replaced the metal top cover with a clear acrylic sheet I had cut to fit and attached magnets to so that I could view from the top. If I had to find a fault with the printer, ti wouldn't be with the printer but with the assembly hardware, I stripped a couple of the hex head screws pretty easily on the enclosure, so I replaced them with stainless steel screws with a deeper hole for the allen wrench that doesn't strip as easily. Downside its that it does protrude more so asthetically it's not as clean looking but I don't mind that. There is a knowledgeable community support forum with some very savvy people that I have also benefitted from.