The set contains sizes that most people would use - in some cases, 3 different sizes of the same tip - so that's a plus in it's favor. Now the minuses....
1) My 75 tips cam PACKED into a small, plastic box - not like the picture shows....
2) The tip(s) is/are made of very thin material and several of the tips were "bent" and required some time/effort to get round again....
3) The tips are not one, continuous "form". There is a seam on mine that since I'm the person decorating, can see. I orient the tip where the seam is pointing "down" so it's not noticeable.
4) DON'T lose the book!! The tips are NOT identified by the "standard" tip ID classification, but by a completely different numbering system. To an experienced decorator this shouldn't be a problem as most know what pattern the tip produces - for a novice learning how, then you can learn this system. But they are not interchangeable as far as identifying the tip.
5) Don't get me started on shipping time....