It's a fantastic headphone for that price range. Only drawback is the ear pads too thin. You should change it's ear pads to angled thick ear pads, a lot such ear pads that looks like Brainwavz pads selling in lazada/shopee/aliexpress. Myself is using ATH-MSR7 sheep skin ear pads as it is much softer than faux leather.

Another choice for such price is Philips SHP9500. It have lesser bass than M40X but have more sharper and louder highs.

SHP9500  have better soundstage since it is open back. The sound is more wide and natural, also good for gaming. Drawback for open back of course if your surrounding is noisy then it doesn't block those noise. Also people can hear if you watching prawn.