Reverso, recursivo Aprende programación con ejercicios Visual Basic (VB.net)

Imports System
Public Class exercise128
    Public Shared Function Reverse(ByVal text As String) As String
        If text.Length <= 1 Then Return text
        Dim firstLetter As Char = text(0)
        Dim rest As String = text.Substring(1)
        Return Reverse(rest) & firstLetter
    End Function

    Public Shared Sub Main(ByVal args As String())
        Console.WriteLine(Reverse("Juan"))
    End Sub
End Class