They look fine, but there must not be enough catnip in ...
585904
Neither of my cats have any interest in these at all.  They look fine, but there must not be enough catnip in them in get their interest or something.  They usually love these kinds of toys but neither one will play with these.
1945151
They are cute and look great.  I knew they were small, but they were a little smaller than I expected but nothing earth shattering.  My cat seems to like them as well.
2098861
My cats aren't using this much yet. I'm not sure what I need to do for them to use it.
1980003
They are nice looking stickers.  The only problem is that the smallest of the stickers are very, very tiny.  You need to have good fingernails.
884380
They do their job, but I would like to have a little more length.
1159427
The trays are great and work well with the automatic kitty litter tray, however I wish there were about 1/3 more litter crystals in each tray.
3470228
they are cool, but they don't do much.  The cat like to watch, but is a little skittish around them.
100141
Just a little disappointed with this product since my cat shows not much interest if at all in this catnip.
I don't know, but I suppose that cats really like catnips and they can get really "cat-high" around one. But my cat is like "Eh, ok I see.."
Maybe my cat is depressed, if that's the case, I apologize for the unfair rating. :)
1646175
The product is a bit flimsy - the inserts aren't really a good fit and seem to move around, but that doesn't bother the cat any.  There are little containers to put catnip in (included) but you only need the tiniest amount - in fact, my cat was all over it without adding any because the scent was on it from shipping.

You will definitely need to buy different sticky strips -- I used the ones included and it fell off immediately.  I purchased the 3M Command small poster strips and used four - works great.  You can get a pack of 16 for a few bucks and they should remove easily without marking your walls.  I might buy a bunch more Kitty Korner Kombers for other places (as if I could get my cat to rub against only one corner?)
3227523
The product is beautiful but if your cats are Maine Coon like mine it is too small to convince them to use it.
Otherwise I suggest 4 stars.
4520330
I was asked to review this product immediately even though I have not had a chance to use them. But they look like they will be fine for the purpose I have planned for them. I'm building a cat tree out of wire spools (large) and I plan to hang these toys at different places on the tree. I'm sure the cats will love. Will post more after I finish the tree.

Update: I've finished my cat tree. My only disappointment to date is that I thought all the toys could be hooked to the hanging stick, ring, etc. You know how the cat will wear one toy down and then it is time to replace it.... Nope, the other toys are just toys the cat can swat around the room. I've got the stick and the ring hanging from the cat tree I made. I will finish it soon and post a picture.
3698145
They are very nice. They fit a a little tight, but at least they are not baggy looking. Maybe if you have cat's that sit on them, you might choose a different material. Collect all the cat hair. .
3741026
They will look nice on my new tree.  I'll have to keep them high enough so my brat cat can't get ahold of them.  Worth it.
2800615
They are cute. A lot smaller than I expected. They are very narrow, and you won't be able to fit too much into them. Which, I guess you don't really need a whole lot. But nothing big. It will fit a small bag of cat treats, and 3 small toys. (That is what we are putting, and that was all that fit.)
353144
These are not big enough. It's too hard to spread the eye shadow out evenly with such small applicators.
333724
The only negative about these scratch pads is that I now have a collection of catnip so large that it looks like I'm trying to be a kitty drug distributor.
398255
The cat toys are made very well, however neither one of my cats, I have 2; are interested in playing with them. After a quick sniff both cats just walked away which leads me to believe thare really isn't any or much catnip in or on the toys.  My cats respond to catnip very well, they go crazy, in this case nothing.