There are many “flavors” of anything. Some microwaves are excelent transport, some are not.
As a rule, you do not care how the data gets to you , as long as you have around 15 kb of bandwith per each channel in operation, and the delay will be around the 600 ms round trip or less.
That is when the channels are in operation.
I have seen plenty of services where the delay is good, the bandwith is there, but when you load the connection, the delays jumps out of the scale.