Yes, it is very safe and reliable to use. Also, it is the easiest, user-friendly wallet for ETH, ETC and all the tons of ERC-20 tokens out there!
Just be sure to check the URL (myetherwallet.com) is right. Also, beware of any email or PM which ask you to send infos about your myetherwallet account. Always remember myetherwallet is not connected to email or social media profiles, so myetherwallet devs never contact you!