I understand what the above comments are getting at. He does have a voice that is a kind of droning whine, but, it's something you'll either like or not in the same way anything else is I guess.
The best album to buy by a mile is Want One, it's a very, very strong album and doesn't really have much of a weak spot in my opinion. his other albums are a little more hit and miss,being a mixture ofgood and not so good.
I found his music grew on me, it certainly wasn't immediate, but still, Want One is the album I'd listen to above any of the others, time and again.
Very good live performer too.