I manage 3 different hosting accounts and more than 20 domain names on 1and1.com. Everything works. Always. For many, many years.
Whenever I read these "sour grapes" warnings about 1and1, it inevitably turns out that the person who posted it does not know which way is up. I.E. They don't know what they are doing.
Stay away from 1and1.com for any web hosting needs, complete disaster, false advertising,my client is so frustrated and when I was trying to help her move, they were totally obnoxious talking to me or helping us with any technical queries.