Bests & Worsts Reviews from Amazon

My current favorite magnesium because it has no questionable "other" ingredients. I take it before bed. My ability to fall asleep has improved since beginning using this product. When my 92-year old mother complained of excruciating leg cramps at night, I sent her some of this. As soon as she started supplementing with the Superior Labs magnesium citrate her leg cramps disappeared. Update on my review: I am now very concerned about this company and the last 2 bottles of this magnesium I recently ordered. One bottle has a sticker over the bottle saying 1000 mg Magnesium Citrate, but the Superior Labs label says 200mg elemental magnesium (from 1.250 Magnesium Citrate). The other bottle has a sticker over the bottle saying 160mg elemental magnesium but the bottle it is on is labeled as Elemental Magnesium 160mg (from 1,000mg magnesium citrate). How is it a sticker slapped over the already-labeled bottle differs from the bottle label? How is I order the same product on two different days within a few days of each other and I get bottles slightly different in size with different labels and values? The previous bottles I ordered had 400 mg elemental magnesium per 2 tablets. This is no longer a 5 star but it appears I cannot change that part of a review. I am afraid to take these capsules. How can I believe what is in them?