Deep clone an item in C#

There are several ways to achieve deep cloning of objects.
I have tried multiple ways to do this, but most of them were flawed – either in execution or performance.

One of the simplest and most effective ways I have seen is serializing the object into binary and restoring it into a new object!

        private static T Clone<T>(T source)
            if (!typeof(T).IsSerializable)
                throw new ArgumentException("The type must be serializable.");

            // Don't serialize a null object, simply return the default for that object
            if (ReferenceEquals(source, null))
                return default(T);

            IFormatter formatter = new BinaryFormatter();
            Stream stream = new MemoryStream();
            using (stream)
                formatter.Serialize(stream, source);
                stream.Seek(0, SeekOrigin.Begin);
                return (T)formatter.Deserialize(stream);

Seems too simple to be true!

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