Mixed feelings. In terms of sound quality, if you want it exclusively for gaming, it's fine. Also, if you want it for music but don't have high demands, it will also be fine. Although its bass and treble are very good, it suffers quite a bit in the mid frequencies and especially in the range of human voice frequencies. The voice sounds very artificial. With a little calibration using Razer's software from your mobile phone, I brought it to an acceptable level for my ears. However, Razer's software is not good. To give you an understanding, when you connect it via Bluetooth, in the app you have an option to put it in gaming mode where it reduces the range but gives you greater speed and reduces latency to an acceptable level. When you open the app on your phone and connect it, the gaming mode button doesn't work and you have to close the app and reopen it, reconnect it in order for the gaming mode to work. After sending feedback to Razer about this before a couple of months ago, of course, no response and nothing changed. Also, when I connect it to the computer via the USB-C 2.4 GHz dongle, it works fine for gaming, but when you try to listen to music, for example, watch YouTube, it doesn't work. It automatically pauses the video and you press play again and in the next frame it automatically pauses again. In short, for this price, I would prefer something else. Personally, after this, I switched to the wired Razer BlackShark V2 Special Edition and I was very satisfied, both in terms of sound quality, which is much better for my ear and preference, and because I don't deal with the extremely mediocre Razer software.

POSITIVES
+ Light and comfortable even after prolonged use.
+ Ability to sync with mobile and computer simultaneously.
+ Wireless.
+ Good battery life: 30+ hours.
+ Assembly: Good plastic, although they collect fingerprints.
+ Packaging: Typical Razer quality.
+ Profile: Does not resemble a typical gaming headset. Can be worn comfortably outside without looking like a lantern.
+ Microphone: Very good microphone quality. The EQ in Synapse helps a lot.
+ Noise isolation: Does not have active noise cancelling (in the headphones - it does in the microphone), but even if you increase the volume a bit, you won't hear anything outside of the headphones.
+ Ear cushions: Comfortable (although clearly inferior to leather ones) and good material for sweat retention.

SO-SO
Performance: Decent (for the price, of course - it doesn't make sense to compare them to headphones that cost 300€+). The sound is a bit "muddy" and the soundstage is generally weak. The equalizer in Synapse helps, but don't expect them to transform. The "THX" is probably a joke - personally, I turned it off immediately. Incredibly high compression to simulate surround sound to a degree that destroys clarity.
No dedicated buttons for changing tracks: You have to press the power button twice for the next track and three times for the previous track.
No proximity sensor: It doesn't pause/continue playback when you take them off/put them on.

NEGATIVES
- The cups fold the wrong way (the ones who designed them deserve an award..). It is somewhat saved by the fact that they rotate at least a little from the "correct" side.

SUMMARY
For this price, there are definitely headsets on the market with better performance (especially if you include wired ones).

On the other hand, if someone is looking for an all-around wireless headset that can be connected to both a mobile and a computer and can be used on the go, has good battery life, satisfactory sound, and good microphone quality, this one is a sensible choice.