I worked for this particular Starbucks during the summer of 2012, so I might be a little biased with my opinions here, please keep that in mind.
The manager has always stressed keeping a clean and presentable store lobby, and the current baristas, as well as those I worked with in 2012, have always been very quick and efficient at making quality drinks. I have been visiting the drive-thru at times this summer (2014), without letting the current partners know that I previously worked for the store and their manager (Brandon), and the quality of service/drinks I have received has been phenomenal compared to most of my experiences at other Starbucks locations. The store is a bit out of the way, unless you are in or around the North Prospect area, but if you are looking for a good place to study or get some work done while guzzling down some caffeine, I suggest heading here above almost all other coffee shops in Champaign/Urbana.