I have only ordered one tablet from Banggood, and it took 33 calendar days to arrive. All of the miscellaneous gadgets and do-dads that I have ordered take only about two weeks. The packaging was always top notch and never had any issues. Just make sure to set your expectations appropriately for delivery timeframe.
I also want to point out that even with long shipping times, I’ve never had a package lost. I can’t say the same about Wish.com or Geek.com – in fact, I refuse to do business with them anymore. Banggood, Gearbest and Lightinthebox have all been reliable and similarly priced, if not slow.