There are differing degrees of Munich malt. The darker varieties are low in diastatic power. Good, light Munich is a fantastic base malt, as mentioned previously.
1-2 pounds in a pale ale or IPA adds a malty flavor and doesn't overpower the hops and overall balance. If you want to use it up fast, though, an all Munich doppelbock is great. Did that with 10L American Munich and it was awesome.