My experience is that everything is made in China, the instructions are all in Chinese, and the sellers are not very helpful in English. However, it’s generally the same product that you would buy from a US seller, under a different brand name or different packaging.
You will be able to find instructions in a language you understand online.
It generally takes about three weeks to a month to arrive although sometimes sooner.
On another note, you can combine cash back from satsback.com and Lolli, so that’s about 7% cashback, in addition to whatever credit card to use.