Positive Grid Spark Control X

Bought this one few months ago. It's an essential component for switching channels and utilizing the looper function of the Spark 2. On the positive side, there are 6 switches, the overall construction is sturdy and it is wireless which can be handy not messing with cables, which leads me to the negative side, where the bluetooth connection adds a barely noticeable latency in switching between presets. This one is not necessarily a problem if the Spark is used for jamming at home, but for rehearsing in studio or gigging, it could be a problem. There should be at least the option for wired connection. Furthermore, the Control X must be connected every time the Spark is used, it does not autoconnect. Not a problem for me, but for some people it might be.
For what it is and what it costs, it's good enough, but it can get some upgrades.