Riviera Bakery is okay...but it could be better! I think I'm with the general consensus here on some of the mediocre pastries and unfriendly staff. There's nothing worse than someone acting like they are doing you a huge favour by ringing you in, or helping you. I work in the service industry, and I think that kind of attitude is just unnecessary, but it could have just been bad timing or something.
I really like their salads they sell in individual portions. Their bean salad or cold pasta salad make great quick lunches that you can grab and go. There's also a decent amount of seating if you want to grab a drink and pastry and hang out for a bit.
Overall I think their prices are very reasonable and they offer a great selection, they should just hire some happier people.