Metal plate is definitely worth the extra 35$ in my opinion, Will is a super nice guy that will answer all your questions in discord which I appreciate a lot. Keycaps and red kailh switches feel pretty dang good. 2 very small caveats: 1- the screws pop out, it's not a huge issue imo, but it can be a bit annoying depending on how you place your hands on the controller, I also believe this will get fixed in future iterations. 2- Coming from the Haute M16, my only gripe with the controller, and honestly that's more of a me thing, I was unable to choose a full 28.55mm (big) button layout, there is one currently you can get purchase but you have to install the switches and caps by yourself which I definitely don't trust myself to do. If there are full builds with big button split layouts in the future, I'm definitely buying another unit. Thank you for your work!

I’ve built my own 3d printed leverless controllers with similar mechanical switches before but the fit & finish here and the feel of the buttons is so much better than what I had done. And the obviously the ergonomics are way better, using the keebwarrior was the first time in months that I used a stick/leverless controller without having noticeable wrist/shoulder pain afterwards. The hinge is very nice, too, easy to position & holds its place well, being able to rotate the controller on each side makes a huge difference to comfort as well, though i wish it was easier to separate one side of the controller from the round puck on the bottom that slots into the main hinge for extra flexibility, like having one have on the hinge and the other flat on my lap - currently the puck makes the “flat” side too wobbly to use & removing it requires a screwdriver. Maybe the double hinge would solve that issue, anyway, so I might order one in the future. For now I’m just really glad someone made this style of controller and the quality & considered design mavercade brought to it is incredibly. (I’d also love an option with wider attack button spacing on the right side, the 24mm spacing has always felt a bit cramped to me & adding extra buttons around that makes accidental presses pretty common as I’m learning the layout. The “shiokenstar” layout with those extra buttons, except for the big pinky button to keep the same overall size, would be perfect for my hands)

Mavercade KeebBrawler-04LP Fightstick (Leverless/All Button Controller)

takes a little bit of a learning curve but the incredible ergonomics make this one of the most innovative controllers you can get in 2025

It feels absolutely fantastic to use. Previous controllers made my bad wrists feel even worse and these really help alievate that pain.

This was my first leverless controller, and I’m glad I chose Mavercade. I like the button layout of the S4, it’s intuitive and it makes sense to me. Amazing craftsmanship, ergonomically perfect, and the best customer service experience I’ve ever had. Thanks Will!

This lever less is great! If you’re a keyboard player this will be right up your alley.

Amazing tool. Was a lil confusing to use at first as L3 and R3 are back in weird spots plus I kept hitting start when playing Ultimate marvel vs Capcom 3 but once I use L3 and R3 to my advantage and disable the start button im rather unstoppable. Great product. Been recommending it to my discord group 3times a week

Super comfortable with the split layout, and solid build quality.

It's got some heft to it as well for those lap players!

The 04MX feels amazing out of the box. I went with the kailh pinks which have very similar travel and overall feel to low profile reds, but very slightly lighter.

The layout is incredibly comfortable and doesn't give me any wrist discomfort like non-split layouts would.

Art print quality is great. Overall very happy with the controller

Long time user of various leverless controllers, but was never very happy with them. Some were too flimsy to sit in my lap for long periods of time, the buttons didn’t feel right, or the hand spacing felt weird. This fixes every issue I have come across. Buttons are responsive with a nice feel, and the large extra ones provides some great functionality, like dash macros or two button macros, SF6 parry for example.

Built super solid, good and heavy with a nice foam pad underneath. Hand spacing feels good, distance between both hands and individual buttons suits my (fairly large) hands perfectly. Nice subtle lighting while plugged in, and the customisation of the GP2040 is greatly appreciated.

Time from ordering to shipping was almost a month, not unexpected. But the time from shipping notification to arrival was only a couple days, which was a very pleasant surprise as it was shipping to the EU.

In the unlikely event this breaks (built like an absolute tank, I’d have to drive over it in my car), I would immediately buy another one.

Always had trouble with wrist pain with standard Leverless layouts. This has relieved my wrist pain near entirely. Absolutely worth the purchase!

Mavercade KeebWarrior-S4 Primary (Split Leverless/All Button Controller)

The build is solid and the layout is perfect.

Amazing product. Love the metal back plate. Allows for easier customization to tilt the leverless similar to an ergo split keyboard. I also learned of the new Kailh V2 low profile switches from purchasing this product too. Favorite low profile switches yet.

As always layout is amazing. Build quality feels like its quality. I have a couple small blemishes from the 3D printed case but nothing major and doesn't take away from the overall feeling of it being a quality product.