I bought one a few months back when it was weirdly cheap (£260 delivered!) and it's been really very solid. I've only had a couple of issues:

1. One of the bed temperature sensors reported a fault, this was a loose connection and took about 10 minutes to open and reseat, which was nice

2. I sometimes get an error in Chinese that blocks a print and requires pressing a continue button on the touchscreen. I've tried translating this and I have no idea what it's on about, so if anyone does know what it is then lemme know. Doesn't cause me much trouble though

Overall I'm really pleased with it - it's pretty much a bargain. Mine has never been connected to the internet and very rarely has print failures (and they're nearly all my fault when I have had them). I've ordered the multi-filament addon which they've just announced, and I was pleased to see them offer that as an upgrade for purchasers of the first model.