I can vouch for the XD75; the version where you simply plug-in the switches is really straightforward to build. I'm still using the typematrix because my swit

I can vouch for the XD75; the version where you simply plug-in the switches is really straightforward to build. I'm still using the typematrix because my switches for the XD75 are too bulky and noisy, but may replace them in the future. Configuring the layout with qmx is also straightforward, and you don't need any layers with a large board like the xd75 (I only have one for the "firmware upload" combo).