I have the same vaporizer in 4 ml and now this one in 5.5 ml. Both of them are excellent without leaks and issues.

Oil burns, I wonder how they manufacture these vaporizers, you can't even take a puff before it runs out of liquid. Also, there are no spare parts to change the rubber bands.

Purchased in June 2021. The first month there were no issues at all. From July onwards, it started to have multiple leaks. In stores, they told me that due to heat, pressure is created and it tries to find a way out, so I shouldn't fill it up all the way. From the third month, it started to have other leaks, which were ultimately due to a cut O-ring, which was the only spare part missing from the package and not sold separately anywhere. I even asked the supplier, and they truly don't know what we can do. And the funny thing is that the warranty is only valid for 2 months.

As a vaper for 8 years, I have experience!! I have tried many... This is perfect, guys!!! Zero leaks, easy coil change, I use it with a 1.6 resistance at 10 watts, I go through 10 ml a day, simply perfect!!! I highly recommend it without hesitation!!!

It really is the best! My review is after 1 year of use, it hasn't had any issues and it is easy to use. It never leaks and overall it does its job, it will never bother you! The other person who mentioned leaks either got a defective one or is clearly lying

I bought the silver one last year on 31/12/2019, and I bought a black one this year. The review is overall.

Positives:
Zero leaks as long as you don't mess with the orings.
Easy filling.
Changing the coil even with liquid in the tank.
Vapor production.
Good flavor performance.
Coils for all tastes (0.8 - 1.6Ω), just follow the recommended values.
Very affordable coils.
5.5ml capacity.

Negatives:
Requires careful attention when changing the orings, otherwise it may leak.
I would prefer a taller drip tip.
I would like the coil change to be exactly the same as the Zenith, which had a more stable resistance.

Overall:
More airy than Zenith & Zlide, but with a smoother draw and better flavor resolution. Do not ignore the proper cleaning and drying before first use. It is also recommended to clean it before each coil change.

5/5 for factory MTL.

Very good in taste, but it leaks a lot. Many leaks result in constantly needing to use paper to clean up the liquids. Compared to the regular Zenith, which works flawlessly and doesn't leak at all, the Pro has a much better taste but personally, I will retire it because I can't constantly wipe up the liquids and get dirty.

I have been using it for about 9 months, alternating with the Zlide 24mm. It is a true MTL atomizer. Excellent build quality. Easy to fill and easy to change the coil even when it's half full. It hasn't leaked or gurgled at all. Its biggest advantage is the 5.5ml capacity. I use it with factory coils of 1.2ohm at 10-11Watt.

2 unacceptable problems..1: The rubber on the base where the coil goes was wrinkled, making it difficult to insert the coil and causing liquid leakage. The solution was to remove it completely and leave it without rubber. And 2: the rubber from the plastic tank came off and cannot be reattached, so I have to throw it inside the vaporizer and then put the plastic cover... unacceptable things and I've only had it for 2 months.... It would be good for someone to test a product thoroughly before releasing it. 0.8 13w. 100% VG. The coil lasted only 2 days, haha, back to the factory coils and performance.

Flagship of Zenith. Quality construction with a large capacity of 5.5 ml. Zero leaks. Unfortunately, it is not a cigarette-like vaporizer because it is excessively airy.