I thought that bag was the professional tote pattern. I have that pattern but haven't made it yet. Is is hard to make?
The only hard part of making the bag is sewing the side seams after the inside zipper pocket has been sewn to the bottom. It took me a few tries to figure out what the instructions were saying. And it gets a bit bulky. If you make one of these and get stuck on that side seam, PM me and I'll try to help you through it.