I was a bit nervous going into the shop for the 1st time. I had seen reviews on other sites that said the staff was not friendly, and I was needing to ask a lot of questions. I found the staff very helpful. They know their merchandise and can direct you right to the hard to find items. You can find ANYTHING you want for cake decorating.
The first time I went into the store I was looking for supplies needed to make a princess cake. I saw a cake at a local grocery store and went in looking for the supplies needed to make it myself. They had exactly what I needed all prepackaged in a kit.
Recently, I sent a friend of mine in because she was throwing herself a Double Quncineta (she was turning 30.) I made her a beautiful cake but told her she needed to find her decorations. She found everything she needed for her gag b-day cake. The staff at ABC told her they want pictures.
Prices are reasonable. I have found that most stuff is cheaper than buying online, but be prepared... As other reviews have said, if you are there browsing you will find extra stuff and spend more $.