i have used them a couple of times. I find that they did tend to fit a bit better then the drynites we have here. But be aware that they are a completely white pull-up. They are supposed to be a generic unisex item and as such there is no print on them. However fit wise they are comfortable and are fairly stretchy. They are probably on par as the drynites with thickness and distribution of padding. However, i found that because they are unisex designed, the padding in it is a bit more speed out then the gender specific drynites (as in, the boys drynites focus more on the front of the pull-up, these don't do that).
I didn't really do too much in the way of wetting them or using them as i found that if i did they would leak. I guess in the time that i did try to use them that they tended to be a little better then the drynites in this regards. However, i would say to expect about the same as the drynites in terms of usability.
Other then that if you are looking for something that is comfortable and discreet they are pretty reasonable in that regards.