The Hit-Away is a great drill to keep your eye on the ball when I had mine I would hit for hours in my back yard. Just try not to hit it to hard that's how I broke mine, and just like nybaseballplayer said you need to find a basketball pole or something of that sort.
Another thing if you happen to buy the hit-away make sure have to swing technique down, remember quality not quantity.
Good Luck!
Clint Fraijo