having a number of hours on the EC 120 including G-LHMS I would avoid them at all cost's, they are great for 1 or 2 people to cruise around in but they struggle to get off the ground with 5 on board and that's out of an airfield you will not get out of a small private site with one if you are heavy.
The servicing is not cheap you get a number of small services then a very expensive one so it works out the same as any other small turbine heli, except spare parts are a nightmare to get hold of. The one I look after recently spent 6 weeks on the ground waiting for spare parts.
I would wait for the 66 to come out or look at a late model jetranger instead or if you can afford one a 350
CB