Verified answer

Yes, many of my friends and many people on the internet use this site.

if you are worried about your details, when you get to the credit card part, check your URL and check if it starts with "https://"/ not "http://"./ If it starts with it, then your details would be safe. You can also check if your details are safe if the lock on the bottom of the browser if locked and/or green. If it is then your details are secure, if not but it starts with "https://"/ then it should still be alright.

Hope i helped :D