If I do get one, that’s the one I’ll opt for Cuprajake (the Coffee Sensor one right?) - it looks a lot neater (to me personally) and the black will tie in nicely with the machine - not to mention a damned sight cheaper. Your pics have asserted to me how easy a job it looks to install too.
Time for my stupid question. Once fitted are you committed to using the flow control kit every time you make a drink, or is there a setting on it (perhaps leaving it fully open) where the machine would behave as it would without the kit installed?