Your credit score will increase by a few points, but will still be marred by the presence of the IVA, albeit marked completed. The account might not be an issue, but the insurances might decline cover (which you might not be aware of until you come to claim).
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk
Some insurances won't touch you if you've ever been in an IVA.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk