The more normal songs are all great but Roy Wood's proto-classical excursions are not my favourite mode of his, and the band became much stronger once they became more focused.
(though they sounded like a completely different band by that point. Their debut sounds like the Move side project it was. while the rest of their discography sounds like ELO.)
However being focused was probably impossible with Roy there, so as much as I love the guy I kinda get why he had to go.