I would not write it down as a disadvantage, rather as a nuance: * bluetooth works with most bluetooth dongles in a peculiar way - it wakes up for a long time, the system unit does not wake up when a key is pressed. This is not a keychron problem, it happens with many keyboards. * No scroll lock, break and context menu keys. Replaced with calling chat, switching backlight modes and Fn. * No software to customize the keyboard, everything is controlled only by keyboard shortcuts with Fn (the full list is on the official website). * If I understand correctly, then keyboards with RGB backlighting have dark gray main keys, light gray functional ones. With white backlight - the opposite. Check before buying) In general, the keyboard is nuanced, but there are no special alternatives. There are a lot of English-language reviews, all the moments are well painted there. If there is a choice between K5 and K5 SE - the latter has legs, for me personally it is more convenient to type with a slight inclination. * Banana switch. In the end, I liked it - they do not have an "idle" stroke and tactile feedback allows you to more clearly determine the operation. But out of habit they seem tougher than full-size Cherry Brown.