I bought it a year ago. It has no soundproofing at all. After 80 km, you can't hear the intercom at all. There's air and noise coming from everywhere.

Worn for 2-3 months. Head size 59 cm, size large. First impressions...
Positives:
First of all, I must say that this is the first Hjc helmet I have purchased and what I noticed is that it has a very good fit from the beginning and is not uncomfortable the first few times it is worn until it takes the shape of the head. Its fit is excellent even after the break-in period.
Its weight is not noticeably the same as another 1500g helmet I have, which means that it is well balanced and applies pressure evenly on the entire head.
I recommend it for rounder heads. If you have a long chin or a narrow-long head, it may be small even in the correct size.
I wear it on a motard and a scooter. At speeds of 110-130 during a trip, it has moderate noise insulation (on a motorcycle without wind protection). At scooter speeds, of course, you don't notice anything...
Its visor is amazing as it has steps. In the step that is "closed," it leaves room for ventilation and if pressed, it seals and locks with the mechanism. It is very easy to remove and replace for cleaning or changing the visor.
The cheek pads also come out easily and are satisfactorily dark.
The graphic I got is the eluma mc5sf and it is beautiful exactly like the photo.
I haven't tried the Pinlock yet, but it is very positive that it is included with the helmet. The included hood is also very useful.
The interior is nice and of good quality. I don't have an image of how it will hold up over time as it is still too early to judge.

Negatives:
The vents and ventilation are not bad, they just aren't as cool compared to other helmets, especially during the summer. It may have been better with an additional vent at a lower point.
The release of the fastening is a relatively small lever without a strap. Even cheaper Hjc helmets have a strap for ease of opening, so it is strange that they chose not to include one in this particular model. It's not something tragic, but it may be difficult to open with winter gloves.
If the chin curtain is removed for washing, it is a bit tricky to put it back on regardless of whether you put the cheek pads on first or the curtain.

P.S. Something that may be worth mentioning. I had it with me at the beach and after strong wind, it filled up with sand inside and in the mechanisms. Initially, even after shaking it vigorously, the mechanisms became useless and it seemed like they wouldn't recover. I removed the visor and the interior pads and with some careful cleaning using compressed air, they returned to functional condition.

I bought it for the price of €160 in a random offer. I believe it is worth the initial price of €210. It is value for money.

Very high quality in everything.
The weight is very normal, but I am used to a helmet weighing only 1100 grams, so I was a little disappointed.
It looks even more beautiful up close.
The only minor drawbacks are the grip that pulls down the visor, it is almost completely flat and slides on the hand (without gloves) instead of "hooking" and being easy to open/close.
Also, because of the matte finish, it slips incredibly from the hands. I know that glossy helmets tend to stick to the hand due to the moisture that the palm produces. This requires extreme caution so that it doesn't fall off because it constantly tends to slip away.
I will simply be careful.
For noise, it starts to bother you a bit after about 90, but I haven't tried a helmet without noise so I can't expect something noiseless.
Also, I want to point out that the visor only covers up to the chest due to its size and also because of my height (1.89 meters), and as soon as I change the visor, I will have real feedback in this area of noise.
For short distances, it's okay, but for a trip, you will need earplugs.

The quality of the plastics, the interior lining, and most importantly, the visor, are all top-notch!

Update April 13, 2023:

The interior padding is still not soft enough, which means that the head is constantly under pressure during use and becomes tiring.
I will look for an alternative in this part.

For the rest, I take my hat off, it feels brand new!

I have had it for 9 months and overall I am satisfied. It is worth the 170 euros (for the white one that I have - the price increases for the ones with designs) because it is made of quality materials and has a good overall design. Perhaps the only real drawback it has is that after 70km it starts to become noisy. Maybe it has to do with the rider's posture on the saddle. I ride a scooter with a small windscreen, so my body is upright. Maybe in a different posture, it wouldn't be so loud. The ventilation exists and works, but it is moderate. Everything else is perfect!

Lightweight for its overall weight. It has very good quality materials and beautiful graphics. Satisfied for its price.