I don't have all the personal history of this band, and with all the many interests I have in music, I don't have time to really delve into it. If Hooverphonic switched singers I wouldn't know it.
I can tell you what I do know, which is this: I have this album, Blue Wonder and The Magnificant...and by far this is the best of the three. BWPM has one of the male band members sing on some of the tracks, which splits the album ala Waldeck and simply detracts from what you want to listen to Hooverphonic for in the first place (which is airy, sweeping soundscapes that take you on an inner trip). TMT is a little underdeveloped and sounds almost poppish.
But this album nails it, hands down. The whole thing, from the very first track to the last soaring chorus is perfect trip-hop/electronica listening. It is hard to find new stuff to listen to in this vein of music, being as there are few (if any) venues to be able to listen to new stuff(for those of us on a budget) but this one belongs up there with the best (Estheros 'breath from another', PH's 'Dummy', Morcheeba's 'Big Calm') of the genre. The only other compliment that I can think to give to this album is this: there is no song worth skipping on this cd. You will want to hear it from one end to the other without touching the player once.
If you love new music, you owe it to yourself to check this one out.