Something to consider whether it has a bearing or not on your opinion: 3D is very large in China and all their chemicals are imported from 3D in California so this aspect is helping our economy. But, as far as China is concerned, 3D China is on track to have 100 car wash & detail shops open by year end there. Please don't think that 3D only had this polisher produced there just because it was the cheapest option.
This machine is a nice unit & I suggest anyone to strongly consider it if they are in the market for a new polisher. Way too much negativity has been perpetuated by a few people who haven't even used one. I've been using mine for the last couple weeks and am quite pleased with its performance. I've also not had any issues with "overheating", but all machines tend to get pretty hot during a long buffing session. I know my PC XP will almost burn my hand, but the top cover has been removed. Also consider we are in the middle of a hot summer so machines may tend to run hotter then in colder temps.