The Starbucks on prospect is always fast and friendly, I have never had any issue going there with their drinks or their food. I recommend there spinach feta wrap, it is delicious.
Their parking lot can be a challenge as there is only one way in and out and it is rather narrow with the added challenge of the drive-thru exiting in the same place. They picked a horrible spot to put their dumpster as it makes this a 3 way blind corner. So drive careful and try not to take a giant truck in there to park, you will have a tough time of it.