We've used them (and still do occasionally) but I'm not a huge fan. Erica just seems to leak out of them a bit. I don't really care for the pattern either...it's cute, but the polka dots seem to show through some of her outfits! They're worth a try, but I like other cheaper brands (WalMart brand and Luvs) better.
I use them and like them. We used Huggies before and liked them too, but these are a lot cheaper and I like the polka dots better than disney characters. No problem with leaks (he wears them overnight and everything). We also tried Sam's Club brand and hated those.
I've been using them for the last few months and haven't had any problems. No major leaks or other such issues. The polka dots do show through some things, but that's not a big deal. I do like Luvs too, but Up and Up is a bit cheaper, so that's what we're using.
I love them. I don't think they are any different than Pampers or Huggies. It's all the same thing to me. If they leak go up a size (but that's true of any diaper.)
I felt that they were cut similar to huggies which for some reason never fit DS right so they didn't work for him, but we have a bunch of friends that use them and love them.
I find that they are similar to Huggies which I'm not a huge fan of but we do use them during the day at home to save $$ and use Pampers when we are out and about.
I thought they were fine. No leaks for us, but DD has never really leaked much out of any diaper we've tried. The only thing I didn't love is that they seemed wider between the legs than the Pampers. But DD didn't seem to mind. If I didn't already have a giant stockpile of Pampers and Huggies that I got when Target had them 50% off, I'd buy the Target ones again.
Not sure why but these are the only generic diapers I have ever had a problem with and have about 30 diapers I am donating. I LOVE Kroger's diapers and had good luck with the Playskool diapers from CVS too when they were on sale. I wish they worked for us as I think the price is right.
Re: target up & up diaper users - ?