I have been to a Sisters of Mercy gig...
Smokes machine at 200%, two sets of Disco traffic lights and a medley just 10 minutes in does not create atmosphere. That was in 2006. Utterly terrible. We left halfway through This Corrosion. Yes it was that bad.
The most overrated live act ever. The albums are fine.
As for 55 Cancri e ...I reserve judgement.