This was my first time ever ordering from this website, and I found that the tapes themselves are perfectly fine. It takes some getting used to, especially as someone who's never worked with nail tapes before, but they are pretty user friendly with the different colored tabs to help you find the ends of the tapes. After use I just fold the edge over on itself to create a little tab to find next time.
HOWEVER: One roll, my brown-to-gold metallic tape, came loosely wrapped, like when you pull too many paper towels from the roll an have to re-roll them (but can never get it back to that factory perfect roll), but it still worked well, although I haven't yet gotten to the points in the roll that have those wavy gaps. Hopefully the adhesive won't be too compromised and I can still use them later.
One thing that was a little disappointing for me was that I got two of the exact same tapes; either that or they are so similar that I can't tell the difference. My tapes were as followed: 1 brown-to-gold metallic, 1 white with holographic specks, 1 orange, and two deep blue metallics.
Over all, it's a good thing I like blue!