I go straight to the point, explaining why I give it 3 stars by copying exactly what is stated in the user manual.
"Correct operating time: 15 seconds of use are considered as one working cycle. After using the device for 10 cycles, you should stop the operation and deactivate the device for 30 minutes before the next use."
If we do the simple calculations, we conclude that the optimal operating time of the device, as defined by the manufacturer, is 150 seconds or 2.5 minutes per hour. Let's assume that the 15 seconds of the so-called "working cycle" correspond to the time it takes to squeeze half an orange. Therefore, with 5 oranges, the maximum time limit of 2.5 minutes is reached. In other words, the manufacturer tells us that for every 2.5 minutes (or for squeezing 5 oranges), we should deactivate the device for half an hour before using it again, and so on. If we don't do this, we overload the device.
Now let's see what is stated in the warranty terms, specifically in which cases the warranty does NOT apply. Among other things, "Mechanical overload" ta-daaah!
Unfortunately, it is a common characteristic - a "secret" of all devices in this category that they need to work for a maximum of 2.5 minutes and then be left to cool for a sufficient amount of time. Beyond these time limits, the device becomes overloaded and either the motor will eventually burn out or the plastic gears will break due to high temperatures.
The manufacturers and distributors of these devices avoid mentioning this explicitly for the simple reason that very few consumers would buy them knowing, for example, that for every 2.5 minutes of use, they should wait half an hour before using the device again. So, either they mention it indirectly as in the present case, or they say 5 minutes in the instructions (let's call it Izzy) while the Chinese manufacturer writes "duty cycle max. 2.5 min" on the label on the base of the device.
In an EU that is supposed to be concerned about environmental protection with plastic straws and bags, devices with these characteristics should not be sold. Because the overwhelming majority of them break down due to inevitable overload and end up in the trash, as repairing them at a service center is not economically viable in any case.
This particular device is lightweight for its size, and that's not a bad thing compared to an Izzy that seemed heavy and sturdy, but when I opened it (after it died), I found that all the weight actually came from the bulky transformer. At least in this one, the cable connections are as they should be, while Izzy easily falls into the ticking bomb category!
The mentioned 600 Watts do not correspond to reality. I measured it with a professional laboratory device and did not record more than 145 Watts. So let's call it 150 Watts, which is still far from 600. However, I don't think it needs more power than what it produces. Now why Vasileas S.A. advertises it as a 600W device, only they know. It uses the exact same motor and mechanisms as the more expensive R411 and has the exact same instructions, but you didn't hear it from me!
As for its features and size, it is noisy, and very noisy indeed. At the level of a vacuum cleaner or a hand mixer on the highest setting.
As shown in the photos from the base, there is a fan packed in the motor rotor, which creates a noticeable airflow. However, it is unknown to what extent it contributes to preventing the device from overheating and throwing off the petals. It definitely does something though.
In conclusion, I recommend it strictly for household use (as defined in the instructions). If you are not bothered by its loud noise and are reconciled with the idea that it may not last long if used intensively, then this product is for you. However, if you are looking for a juicer for high production volumes, be prepared to dig deep into your pocket and get a device that meets those specifications. All these "2.5 - 5 minutes and then half an hour break" claims do not deliver as many watts as they advertise.