The "annoying" with the sticker on the bar, I can confirm, however. One gets it quickly from then remain adhesive residue. I can remove it with a little nail polish remover and a rag quickly and easily. The bar did not suffer and I do not even :)
At the transition between the two nested poles is a piece of plastic. Some like the disturbing but it brings benefits, because as the shower curtain rings to slide better and do not remain hanging on the edge. The plastic piece does not fall on there and brings more advantages.
Conclusion: For the price you get a very good product that I can definitely recommend it further.