Well I have not done my whole car yet. Actually today I did my semi-annual detail to my friends 2005 Mustang. We have been using Zaino for the last 4 details and he loves the results. I was going to try to talk him into
Ultima today, but he is huge on durability and sice I have not used it before he was skeptical. I did apply it to the trunk. His car sits outside 24/7 and gets sealant twice a year. So we'll see how one layer of
UPGP holds up to 2 layers of Z2Pro +zfx and Z8 over the next six months. As far as looks, the UPGP looked very similar to the Z2PRO, but I gave the edge to Z2 + Z8. However I bet multiple layers of UPGP would look as good since I have over four on the trunk of my car and it gets wetter and more reflective each layer.
Steve