It's been a year since moving to the UK and back. I'm finally ready to re-review this Starbucks.
Here are the facts:
The employees are better now. Not perfect, but my mom and I have had no problems with our drinks in a while since coming back.
The drive-thru line is still outrageously long at some times during the day. Early morning and late afternoon are the worst times to wait.
So in the end, it has improved quite a bit from the sad state it was in when I left. This location is far from perfect, but it has improved from the 1-star review I gave it previously.