I've been here a handful of times and don't have any negative feelings towards it, though I'm not blown away either. After all, it is a Taco Bell.
The staff is friendly and courteous in my experience but on occasion they've forgotten items or gotten confused about orders. Just check your bag before pulling away from the car line and all should be well.
On a side note, I've noticed the staff, rather than hashing out "Welcome to Taco Bell, may I take your order?" asks "Hello, how are you?" first. I find this bizarre but not bothersome.