Inquiring about Acctek CO2 Laser machines. Experience and Quality?

I'm looking for opinions and experiences that anybody on this forum would have with Acctek laser machines. I have done a general search of the forum and have found some posts here and there. Does anyone have any recent experiences with Acctek CO2 laser machines?

The few reviews out there look good. I contacted them have got quoted on CO2 machines between 150-500W. I know it is quite the plunge to buy a machine out of China. Though I don't have the money for machine stateside. Any help or feedback on Acctek machines would be great.