I've ordered from the top rated source with no issues, and from a source here that's not as "popular"
With... 3 complete orders every single one has been top notch.
But not all are the same, similar yes, but not the same. Some have different warehouses from different countries.
If worried about placing a order I highly recommend looking into the reviews under the source section. there you can read hundreds... maybe thousands of reviews from real people in this very forum.
While nothing in this life is guaranteed... not even from Amazon. (Hell a $200 order from Walmart is still 18 months in the making and they won't give me my money back)
If you order from a top rated source here theres a 90% chance you will get exactly what you're looking for and it will be quality!
Just remember if the price looks to good to be true... it probably is!