I have this bag. I took it to Italy for 17 days (my only bag besides a small day purse) and held everything I needed with room to spare.
Pros: soft sided so you can really cram stuff in or cinch down if it's not full; useful internal pockets, especially the outside one; multi-level internal cinch straps; comfy shoulder straps that tuck away neatly; orange lining makes it easy to find stuff inside; fits easily in overhead bins; very lightweight.
Cons: soft sided (fragile stuff isn't as safe, clothes move around); plastic fasteners and zipper are a little flimsy (although mine have never broken); the colors are not as vivid as shown on the website (I picked orange for stand out factor, it's really quite muted); no shoulder strap; a little bit long for shorter folks (I'm 5'0").
I also purchased the flat eBags toiletries kit which fits in this suitcase perfectly. I partially solved the soft sided issues with an Eagle Creek packing folder (kept clothes much neater).