Hello and welcome, nice pair you have
If you can stretch to an Ed30 or Pirelli you certainly wont be disappointed, that said the std GTI is a cracking car. My first MK5 was a very well cared for GTI and was a great car with great spec. Now I have my Pirelli and I love it, I think the fact that its a very rare car adds to its attraction.
What ever you decide upon im sure you wont be disappointed, especially going from a MK4 which will feel so dated in comparison!