The orbital strike is absolutely devastating and can take out an entire base in a single strike. A deployed uplink has its own core and the range increases over time, similar to how a hive increases its efficiency over time. You can watch the range increase in real time if you have the map open.
You can also see enemy uplinks and their range on the map. It is best if you build your uplink first so that you have the range advantage or crack the enemy base and destroy their uplink before building your own.
Pretty cool unless you are on the receiving end like Valen and I were last night. Revenge will be ours soon.