I can also support the above said by @sjefdeklerk, I am actively monitoring the whole revolution here on the forums, watching all the youtube videos from PiMAX users, speaking to PiMAX support on active basis. I can certainly study that @PIMAX-Support doing a tremendous work to improve PiMAX 4K product and didn't slow down for a second. They have two development teams one for 8K and one for 4K so one doesn't slow down the other. Furthermore, if you take time to read the community in good care and detail, you can see, most of the issues indeed get fixed and issues got deeply optimized by PiMAX engineers so the overall experience with PiMAX 4K is very satisfying for most of it's users.
Being a start-up PiMAX brought this world a technology / resolutions that no one yet could bring to the consumer market. As any new technology it had it's baby issues but certainly, we all can see, PIMAX doing a massive work to make sure PIMAX 4K users get the best experience ever by optimization and solving of all the pending issues.
Lets also not forget, PiMAX also brought to this world a whole new technologies which could deliver a great impact to the VR industry as whole, as example Brain-Wrap technology and deliver a significant improvement to the LCD / IPS panel, making it usable and pretty awesome for VR while before PIMAX brought our world this technology, anyone thought of using LCD / IPS for VR could only get very bad results, due to the nature of LCD / IPS.
Unfortunately, as in any factory out there, one of the many made items comes with a certain defect out of the box. So I was the one who got the defective one. It happened before with Fujitsu and even Panasonic products. Nature of this electronics business. However, @PIMAX-Support carefully listened to my situation and now working on a rapid solution for me, which is pleasing me indeed, seeing and knowing there is some one who truly care of you, listen and take care of you as a customer!
Thank you @xunshu @PimaxVR @PimaxSWD @pimax.li for bringing this world the next-generation of VR experience against all the doubts!