Cel Robox 3D Printer, Dual Extruder

I had this printer for 13 months now, all I have is frustration. I had printed ~10 packs of robox PLA filament until now... I almost cannot remember how many times it broke and how many parts I have changed...I tried to record all the print major failure and broken part here. 1. When I just got my printer within first several days, the nozzle broke and leaking a very large amount. I call amazon customer service and have a replacement. 2. After I got my replacement, within 1 or 2 weeks, another error showing up and it's start flashing red light. The CEL customer service told me that it's rare to have this issue it should be coming from thunder storm which I highly doubt. They offer me a repair which they will pay for the shipment for sending back the printer, but they told me it will cost them 30 days or more to fix the issue.. I called Amazon customer service again and they said they could give me another replacement if I want. I just don't know what did I think that I accepted the replacement. I guess I really had a faith on CEL thinking of this could only be some rare issue, and the replacement won't have the issue again.. This time, I order an pro-care with the new printer which guarantee to have the issue fixed and and replacement printer will be send if the issue cannot be fixed immediately. 3. 3 months after last replacement, I was quit happy with the replacement for 3 months, there is no issue coming out. Until the a week before Christmas last year, the extruder broke. I contact the CEL customer service and they provide me some instruction and send me a replacement extruder. It takes me 8 hours to replaced the extruder and it's still not working. The customer service let me use my pro-care and send me an replacement. 4. However, the replacement still not working. The thermal sensor fails this time. The customer service apologized and send me another replacement 2 days later. The printer works okay this time, and they give me an backup nozzle this time. 5. I was stop using the printer for ~5 months earlier this year (2018), and then I started to use the printer about 2 weeks ago, the printer is working okay for two weeks and then unfortunately it broke again, the nozzle is broken with stuck material, and I follow the instruction of removing the struck material, it's still not working. It needs to returned to the customer service for repair, but this time my pro-care expired, and I need to pay for the shipping and the repairing fee which cost a lot maybe more than a new nozzle. I think the product is not very reliable, and very easily broke. Within 9 months of using this, I almost has all the different component broke at least once. Extruder, power supply, nozzle, thermal sensor... I have to say this printer has a lot of features I really like, and the customer service is always very kind very nice, but the reliability has a lot of room to improve. It requires to have a tremendous of patient and love to this printer to have one. I hope my next printer would requires no customer service and I can focus more on my design instead of fixing the 3d printer..