Alot of people I know say its akin to an IGGY solo record.In alot of ways it is.You have to remember that people, things and relationships change,experience changes your music.Also youth is a factor.I bet all of your favorite bands best material in your opinion is their early stuff.ANY bands first or second album is always the best in my opinion.This may have to do with the creativity and emotions of youth,and aggression certainly.
The album isnt terrible,its just doesnt sound like what we would consider a Stooges album to sound like,an old stooges album anyway.We have a tendency to compare a bands BEST material to their newest material,its natural to do that.W'ed all like another Funhouse from that lineup,and Im of the school of "If the formula works stick with it!"But its also 40 yrs later,and as I said time changes things,and it usually means "different" which doesnt necessarily mean bad.