Avoid the Spark i7.
Where to begin. I was an early bird for the i7. It was great at the start. Then things went downhill from there. I enjoyed the printer so much shortly after release, i purchased 2 more. Then the 4th. Not long after the 4th, after about 100 print hours i had a temperature sensor failure. This happened on August 31st. I proceeded with troubleshooting via WhatsApp. They sent me a new motherboard. I replaced it. 40 print hours later. Same failure. Since then, i have been running in circles with support. Here we are today, they sent me a new fan. Replaced it. No resolution. Almost 3 months in. No resolution.
After almost a decade with Creality, 9 printers later. I am throwing in the towel. This is unacceptable.