Regarding the rest of the reviews, the alarm does not have a seismic sensor. It can be additionally installed and costs around 40 euros.

Outside embassies, near antennas (e.g. Parnitha), in an area with many parked vehicles (very common in Attica), the remote control does not respond to any command. Of course, the batteries have been checked and I even changed the remote control. If you have the alarm active, it will sound until you enter the code using the key. And everyone will look at you as if you are stealing the motorcycle... Also, it requires a good shake of the engine to start. With the patience of a thief, it easily removes all the plastic without making the slightest noise. Fortunately, the automatic arming of the immobilizer is deactivated and I no longer need to press anything to start. Only in the case that I activate it myself. Due to the above problems, I only arm the alarm at home.. It is not worth its money for any reason.

As an alarm, it has never presented a problem.
The sound of the siren is very loud, especially if it is placed "outside" since it is waterproof!
It hardly consumes any battery, which is important.. But..
It has one major drawback!
Even if the thief disassembles the entire motorcycle and takes it piece by piece, it will not make a sound unless someone shakes it vigorously!
I have had incidents where I unlocked the handlebar without disarming it and washed the bike with a pressure washer, sponges, etc., and while cleaning, I could see from the indicator light that the alarm was active! But it didn't do anything. For me, this is a reason to remove it and switch to something different.. And I wouldn't recommend it to anyone if they asked me..