[zokier]

First impression: Improv has still all those bulky connectors on it. Second impression: It costs twice as much as the RPi module.

[makomk]

I think those connectors are on the detachable baseboard, not the processor board.

[zokier]

It seems you are right. In that case it is more comparable to this RPi module. The price difference stands though, if you can't get the processor board separately significantly cheaper somewhere.