I've bought one of the "gaming" tablets from ONEXPLAYER and what stood out most of the purchase was the great service. I had queries before I make the final decision to purchase it to the support and to their credit they were very helpful. I received support with the customs preparation as well. As for the tablet itself, it feels sturdy like it is made from quality materials. It is exactly as described and it works as expected. As for the price, it is subjective. This is a niche product and as such by definition it is expensive. However, I feel it is very well justified. I also see they offer replacement parts and it seems relatively easy to service the tablet. So for me it is well worth its price tag.
The only points I will deduct is for the poor or altogether missing documentation/data sheet in English(haven't checked in Chinese). Some products have somewhat documented specifications and/or manuals. Others you must guess. I'm pretty sure I can get this information from the support, but I have plenty of experience so I didn't have to. Same with the support Software. It is there, but not very well structured. If the support pages are improved I feel ONEXPLAYER could rival big players like ASUS. Hopefully, this is on the road map. If not, then you can always fall back to their support service, which so far has been great.