The Admiral 38 is a nice Catamaran. Heavily built as most fully ocean capable cat's are.
Admirals don't have real keels so point to about 45 degrees at best but you'll be pinching to get there - best point at 50 or so.
My Gemini has boards, I can point to 35 and pinch to 30.
On the motor - having two will be different. You can turn them in their own length, slide it sideways to a pier etc. Full sized Cat's are wide too - depending on the helm arrangement seeing the off side can be hard - I for one have never had a problem.
Generally, you will not see the mooring ball, a crew member will have to direct to as to distance and angle. A good catamaran able trick is to use only one motor (the off side) and back up to a ball's pennant so the helmsman can both see and then if single handing pick up the pennant him/her self.
Because the boat weighs in at around 20k pounds it will coast pretty much like a mono - the weight of the boat keeps it moving forward.
By comparison my Gemini weighs 10k pounds at 34 feet.
On the sails - it will tack slower than you are used to. I've never sailed on the Admiral but have on the Maxim 38 (aka Voyage 38). Backwinding the
jib on a tack might be needed, especially in low wind; don't let it bother you just hold the active sheet on tacking, watch the
jib backwind, count to four or so and release the active sheet. Or course that's only in light wind which you won't find in the BVI much this time of year.
Too bad it's next week - I'd take you out for a demo ride/sail and show you the differences.
Enjoy - let us know what you thought when you get back
Chuck