Just as with any position or job within the military whether active or guard/reserve there are both benefits and drawbacks, the most important thing, with all the guard/reserve and veterans/retirees looking for work, even if it is not what you wanted to be in, it is allowing you to get your foot in the door.
In most cases that is all you need, once you are in, if you find other positions later on that are open or available in the field you desire, you will have an advantage over others as you are already in the system. Take it for what it is worth, you are getting a steady paycheck, go with the flow and enjoy it while it is there and not being cut.
Good luck and like I said make the most of it as you can, make the connections and go from there.