Me, I think it's just - JUST - different enough to be interesting. I personally like covers that are VERY different from the original. I think that the trick to covering a song is to do it as it would be done if you were the one who had written the piece. It's much more fun that way.
If "Logos" had been my composition, for example, there wouldn't be any synth at all. Not because I don't like synth (well, I
am a TD/KS fan, after all) but because I don't play synth.
So, if I was to cover "Logos", I'd be playing the lead part on a flute, getting other people to play bass guitar, djembe, possibly cello and organ...it wouldn't sound remotely like the original.
One of the most enjoyable musical experiences of my life was when some mates and I got together to do an almost entirely acoustic version of "Stratosfear". It was recorded, but unfortunately the hard drive on which the recording was made died very shortly thereafter. I might get those guys together again to give it another whack sometime.
The art of doing cover versions is to turn someone else's music into YOUR music. Like, they wrote the recipe, but you're the one baking the cake, if you get what I mean.
If celibacy was good enough for my father, and his father before him, it's bloody well good enough for me!