An Aeropress, Moka Pot or a Vietnamese Phin Filter are other cheap alternatives to try. But if you're overextracting in a French Press you might be doing something wrong with the brew time and/or the temperature.
It'd also help to know how darkly roasted it is and what type of beans they are.
I'd enjoy using the m30 a bit more if they fixed some of the problems, otherwise that dpad is among one of my favorites to use. The lack of pivot really kills the dpad for me since it's so easy to depress all 4 buttons at the same time. Mine had another problem develop which made the dpad unusable since it kept sticking. If you enjoy a 6 button pad you might as well go for a fight stick since most controllers have some significant problems for me.
I've heard good things about the Victrix controller and the Octa (although the octa has some qc problems). The Raion would've been an amazing controller but it suffers a lot of the same problems the m30 has. The Fighting Commander is probably my favorite of the bunch.