I had a better impression of it initially. Music from another Dimension is fraught with compromise, "if you have your song there, I'll have this one here", real rockstar deity politics, talk about DP's Stormbringer! It hampers the flow of the album (except that so much of it sounds Beatlish). But Tyler can sing (though he was terribly off key at the Sandy benefit with Dream On, but we all have off days).
I don't want to keep repeating myself, but I'm really an Aerosmith "fan" by accident anyway (from being around a guitarist friend for the last ten years who is such a real Aerosmith fan. Nevertheless, being exposed so much to their music probably has given me more of an appreciation than I might have expected. I've heard Steven sing "Dream On" off key before and it is painful to listen to that. Nevertheless, the song itself is a masterpiece, IMO. Also, I do appreciate Tom Hamilton's bass playing. On some of those songs, what he is doing is not quite so easy as it might look. Anyway, that's just my impression; I'm sure opinions will vary. As for the album, unfortunately, Aerosmith functions as if it were being run by a committee. So, you're going to have compromises galore. That's an accurate analysis of the results of the new album--rockstar deity politics. Some of those Joe Perry vocals were painful to listen to, also. Nevertheless, I did like the album better than the new Muse monstrosity, something I've commented on before, of course.