Compared to the Agusta support you've likely had, Bell support can't be beat.
The aircraft is performs really, really well... the question I would pose is where you plan to operate it out of. I see UK/Nigeria... and in both Nigeria / Isle of Man, it can operate at 7500lbs, whereas in England it's limited to 7000lbs. With a VIP configuration, that may not matter as much as compared to a EMS configuration though.
Send a PM to longbox and he can give you all the details on 429s.