I really haven't been following this, but wasn't the N64 controller cancelled or discontinued or something? Think it might have had some problems...which if RetroBit's other products have been crappy maybe that had something to do with it? (totally guessing here)
I'm also skeptical. I love the 8BitDo products for example (besides hating Bluetooth connectivity issues), but nearly every other non-official brand controller I've ever used has had some major drawbacks...so I'll hold my breath until the reviews start coming in, then I'll pick these up if they're good. Otherwise having to use a cord isn't the end of the world.
A lot of their controllers have been discontinued and replaced with newer versions that don’t look as close to Nintendo’s originals. They were also renamed, despite being discontinued. “NES30” became “N30,” for example. It seems that they are suddenly concerned about trademarks and infringing designs.
I was at Microcenter yesterday and they still had the 8bitdo NES30 Arcade Stick and 8bitdo + RetroBit N64 BT controller.
The quality of their NES30 is better than Nintendo’s own NES Classic Edition where Nintendo made the nub beneath the D-pad too small, allowing constant unintended diagonals (particularly frustrating example that keeps happening: Kirby floats when I’m trying to double-tap to run). That said, 8bitdo made a similar error on the recent 2.4GHz non-BT and the BT versions made to match the Super Nt. Swapping the SNES D-pad in definitely helps. Raising a bit more with tape helps more. Some people cover the inner contact on each direction with tape (enough contacts remain to function) in order to solve it without an original part. The replica part does look nearly identical but the slight size difference on the pivot nub really hurts it.
Here’s my video demonstrating the D-pad swap with my brother playing Tetris Attack/Panel de Pon:
https://youtu.be/gO9w1uzgZvI
All that said, I still heartily recommend them. Most people are not particular enough to ever notice and the utility of BT adds enough to make the extra effort worth it, IMO. This is coming from someone who has 11 essentially unused/original SNES pads and knows what they should feel like (1 SFC, 10 SNES).
I think it’s fair to say that we are really picky about our D-pads too, same as you. Even the officially licensed SNES AsciiPad was garbage for Tetris Attack despite seeming to us original parts!