They have a $1 off Yelp check-in offer...which makes this place almost reasonably priced. (I use Starbucks as my rip-off barometer.)
I got a dirty chai (extra $.50 for the espresso shot - pretty standard) and it was good...but there was some sort of looming after taste that I couldn't figure out. Maybe it's the specific type of beans (roasted locally if memory serves me correctly) or a different chai mixture. I never could place it, and I did finish my drink...
Drive-through is simply order AND wait at the window, so expect to invest a bit of time getting your drink. Luckily on my single visit, the person ahead of me only ordered drinks - I would be interested to see how long food takes to prepare with this sort of drive-through style.
Will I be back? Not likely, but it isn't because buzzberry is outrageously priced or their drinks poor. Rather, to me, it was fairly unremarkable AND a bit out of my way.