Yes I've used the new version. It is a bit thicker than the old, works best if you let it sit about 15 minutes before buffing off (the old was a wipe on/wipe off product) and still has great reflectivity with a carnauba like warmth to it. It is super slick, attracts little to no dust and is just a dream to work with.
As for longevity, I did a 2001 Explorer with AIO/UPP combo about 2 months ago and it is still beading like crazy and after a wash looks as good as it did the day I applied it (I see the Explorer almost every day since the owner works in my building).
I guess you cuold say I like it...then again I never had a problem with the original UPP either. I always apply UPP over AIO.