I
LOVE mine... with the guide lines for reversing, I always center into the space as desired... it's easier than pulling in forward even. For times when the neighboring spaces are wonky, it's easier to short shrift the passenger side, aligned with the other car's passenger side, so worst case you have to pull out to let a passenger in.
Also, if every other car parked forward/reverse then the more cramped spaces wouldn't be as difficult. Note, I live in AZ, USA where more than half the cars are full sized or larger vehicles. So parking lots designed for cities with smaller vehicles are particularly difficult.