I have Addi needles too and I have had to take one set back because the wood was snagging my good yarn. No biggy, the LYS did replace them for me. I also snapped one of my Takumi DPN'S and my Brittany DPN'S which are suppose to be better needles are developing a bow in one of the needles.
I think our Cheaper needles vs better needles is just like everything else in our lives. It's all in what one can afford in their lives at the moment. I'd love to have the best in everything I own, but sometimes it's not always financially feasible . Even on something that seems like a no brainier to one person but a cost cutting need to another ,counting pennies means ,'Yes I can do this at this moment ' The more you learn to knit the more you'll fall in love with knitting and then pampering yourself with better needles will be your treat to yourself.
My LYS gave me a tip on using the cheaper needles, if they do snag , very gently with the finest sandpaper you can find, sand them and then use wax and lightly rub it in and buff until smooth.
One instructor mentioned using the wax that one gets from the dentist that is use with braces. I got some from my dentist and used it on my cheaper needles , works great!
I still say just because they are so cheap doesn't mean there's something wrong with them and if you treat them like you paid a lot for them they should work.
This would be a super great deal if your a brownie troop leader too. Or , just trying to teach to a group of wannabe knitters.