From an ATC point of view, it is no different if single or twin.
The only consideration is if it is going to be night, when of course some of the routes are not available to singles.
Generally, we try and get you in from the south, to save a crossing and probable hold. There are also course certain met criteria that preclude a SVFR crossing. We warn the ground guys when you have 5-10 mins to run and they drive out to the Heli Aiming Point and will look after you.
Also, at night and in certain weather you may be told to approach the threshold, then hover taxi in.
Departing is easy, just a potential vortex issue of Departing 27L or 09R, which may lead to a delay. Again, better of going south with no delay even if heading North West - going H9/H3 - Thorpe - Ascot - WOD/BUR etc (which I know you are familiar with)
As said, the "step up" in RT from the often quiet 125.62 to the tower freq's can be a surprise.... you really need to be alert among the constant chatter.
Anyway.... no need to worry about the landing fee - nouse is loaded!!!
