21/02/2022 purchase for personal use and
20/07/2022 it died.
While the timer starts counting when I put my hand inside, the lights do not turn on.
I do not recommend it under any circumstances.

Quite good for its price! The performance will definitely show over time...
Update: 20/11/2022 I have been using it professionally for almost a year! I am completely satisfied, its performance has not decreased so far! The only possible disadvantage compared to ovens that have a mirror-type bottom is that with dual forms on sculpted nails, you have to polymerize and turn your hand upside down! I hope I helped :)
Update: 22/12/2023 It started slowly not polymerizing the material correctly and turning off on its own and getting quite hot... But it's logical because ovens' lifespan decreases as you use them... For two years of professional use, it held up just fine!!