Been using this for over 6 months now and have not really been tempted to try anything different. Using ink black linear switches in a self-printed gasket mount case.
Many! My journey went as such: Dygma Raise -> Drop Preonic -> SplitKB Kyria -> Wireless Sweep w/ Nice Nanos -> BastardKB Charybdis -> finally landing on the Fingerpunch FFKBv3.
The creator of the FFKB has some fun plans for v4 (scroll ring w/underglow, dedicated mouse buttons, possible tent capabilities), which I will probably also buy.