Small version of the Review: As a mouse, it is 5 stars. It is excellent in response, without the problems of other wireless mice, light enough with very good Mouse Feet for resistance-free glide. Also, the cable is the same as that of the Deathadder V2, so even when charging, you can use it undisturbed. If you are not interested in wireless, go for the Deathadder V2, save money and have the same result.
Now let's move on to the big version! Everything I say below, apart from the Wireless Performance, also applies to the Deathadder V2. There will also be mini reviews, more complaints about other products in comparison.
The market has been flooded with holey Gaming Mice, vulnerable to damage (as proven by the users themselves). Razer was the first to achieve the "impossible" with the Razer Viper and Viper Ultimate, to release a Palm Grip mouse without holes and restrictions. With over 10 million sales worldwide, the Deathadder series now has the Lightweight member AND IN WIRELESS.
I have been a user of the following mainstream mice in the market in 2019-2020: Logitech G Pro Wireless, Glorious Model O, Steelseries Sensei 10, Razer Viper Ultimate, and others...
I am a Palm and Claw Grip user, but mostly palm for 13+ years in FPS Games.
The Logitech G Pro was small with many flaws. The plastics disappointed me, without Mouse Grips, the mouse would slide and my hand would sweat. I had to change the Mouse Feet to PTFE because the stock ones were "Cheap and bad", quite thin, and I felt it was sticking to the Mousepad (this is due to the fact that I am used to thicker feet with very good glide. If this is your first good mouse from Logitech, then you won't have a problem). Finally, the mouse, for its size, is heavier than the Deathadder. Many of these issues are addressed in the new G Pro, which will take a long time to come to our market and definitely not at a reasonable price.
The Razer Viper Ultimate attracted me more than the G PRO in everything... but still small.
The Steelseries Sensei TEN was simply unacceptable. It reminded me of the Sensei from 2012. I haven't used any of their other new ones, unfortunately, and I would like to.
The Glorious Model O, I liked the grip a lot, it reminded me of my Deathadder Elite in shape... but it was small in size, unfortunately (but you get used to it). It was also lighter than I would like and it had filled the Internet with negative reviews about the durability of its cable, left click breaking, and sudden deaths, so I gave up on it... Now there is also a Wireless version, which I hope has solved these problems. We are always talking about a small company, so it is automatically easier for something faulty to come out.
A year ago, I was begging for a Deathadder Wireless, at 80 grams. Now it exists and I love it.
From Razer Mamba to my first Wireless, I encountered many signal problems. Then with the G Pro Wireless, I also encountered problems but fewer. I was generally in a phase where I didn't trust Wireless. Then I tried the Viper Ultimate for 3 months with zero problems, so I started seeing them differently. Now I have been using the Deathadder V2 Pro for 1 month and I can say that I love it. I have no problems, it connects simultaneously with Bluetooth and 2.4Ghz (convenient for those who have 2 PCs) through its adapter and with a cable. The Clicks on it, both the Left/Right and the side ones, seem to have been improved. For those who had issues with the V2 because they were "Hard", now they are somewhat better. Compared to the Deathadder Elite, its Clicks make a bit more noise than I would like, but it's a matter of getting used to it. After two days of use, you won't even notice it. Of course, it's still more pronounced than the "Deathadder Elite", so I consider it a positive/negative that it sounds more than I would like. But it still sounds less than other mainstream mice on the market, like those from Zowie.
Now I have the Razer Deathadder V2 and the Pro in my hands, with the same incredible cable in case you need to use it while charging, the gliding pads are as smooth as butter and even better than those on the Deathadder V2 (not Wireless), resulting in me having to lower the sensitivity because it feels like the mouse has no resistance on the mousepad anymore. The sensor is top-notch... but irrelevant, as the old Deathadder Elite already had a perfect one. Generally, most mice from major companies since 2018 have very good sensors. Finally, it has the same optical switches as the Viper and the DA V2, with slight improvements, which promise zero double-clicking (a problem that some people had with older mice and was quite common in some Omron switches, like the ones Logitech has in its mice. (Of course, this is easily solved even if you are out of warranty if you talk to Razer in Greece))
Overall, I don't know if my wishes were heard, but I have what I wanted!
If your hand is medium or large-sized, go for it! It's the only way to go for Palm/Claw Grip.
If your hand is small, look for the Razer Viper/Viper Ultimate or the Logitech G Pro (wait for the new one).
If your budget can't afford any of the above but you want something large, then check out the Razer Deathadder V2 (especially if you don't care about wireless), and if you still can't afford it, go for the Essential version (a Razer Deathadder that does its job perfectly, with a 2014 sensor and no issues)